Categories
JavaScript Web development

CSS Avatar + Parallax.js

Learn how to create the simply avatar using CSS with Parallax.js. Follow steps below and/or watch the video tutorial.

CSS Avatar
Do you like this image? Check more images in the store.

Parallax.js is a simple JavaScript library that adds parallax effects on any images. Each Parallax.js instance needs a container element, the scene. 

*to see the live output of the animation click here.
*animation opened in the Safari browser.

To create the CSS Avatar with Parallax.js you need to do:

  1. Add HTML
  2. Add CSS
  3. Add JavaScript

Step1.

Add HTML

<div id="content">
  <div id="circle">
    <div id="avatar">
      <div class="hair"></div>
      <div class="ear"></div>
      <div class="face"></div>
      <div class="top"></div>
      <div class="neck"></div>
      <div class="layer head" data-depth="0.3">
      <div class="eye"></div>
      <div class="nose"></div>
      <div class="glasses"></div>
      <div class="smile"></div>
      </div>
    </div>
  </div>
</div>

Step2.

Add CSS

Set the colour, and position of the background, content and the circle.

body {
  background-color: #95d5b2;
  display: flex; 
  align-items: center;
  justify-content: center;
  height: 100vh; 
}

#content {
  position: relative;
  transform-origin: bottom;
}

#circle {
  position: relative;
  overflow: hidden;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background-color: #b7e4c7;
  z-index:-2;
}

Style the avatar:

#avatar {
  position: absolute;
  left: 30%;
  top: 20%;
}

.hair {
  position: absolute;
  background-color: #5e503f;
  width: 100px;
  height: 125px;
  border-radius: 50px 50px 5px 5px; 
}

.face {
  position: absolute;
  background-color: #e6beae;
  width: 80px;
  height: 70px;
  border-radius: 0px 0px 30px 30px;
  left: 10px;
  top:50px;
}

.neck {
  position: absolute;
  width: 40px;
  height: 40px;
  background-color: #e0baab;
  border-radius: 0 0 20px 20px;
  top: 118px;
  left:30px;
  
}

.top {
  position: absolute;
  background-color: #f0efeb;
  width: 150px;
  height: 150px;
  top:130px;
  left:-25px;
  border-radius:30px 30px 0 0;
  
}

.head {
  position: absolute;
}

.nose {
  position: absolute;
  width: 14px;
  height: 23px;
  background-color: #d6b0a1;
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  left: 43px;
  top: 65px;
}

.eye {
  position: absolute;
  background-color: #333533;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  top: 65px;
  left: 22px;
  z-index:10;
}

.eye:after {
  content:"";
  position: absolute;
  background-color: #333533;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  left: 42px;
  
}
.ear {
  background-color: #e0baab;
  position: absolute;
  width: 30px;
  height: 30px;
  border-radius:50%;
  top:55px;
  left:-10px;
  z-index:-1;
}

.ear:after {
  content:"";
  background-color: #e0baab;
  position: absolute;
  width: 30px;
  height: 30px;
  border-radius:50%;
  left:90px;
  
}

.glasses {
  position: absolute;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid #001233;
  top: 55px;
  left: 10px;
}

.glasses:before {
  content:"";
  position: absolute;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 2px solid #001233;
  left: 45px;
  top:-2px;
}

.glasses:after {
  content:"";
  position: absolute; 
  width: 18px;
  height: 18px;
  border-radius:50%;
  box-shadow: inset 0px 3px 0 #001233;
  left:29.5px;
  top:10px;
}

.smile {
  position: absolute;
  background-color: #333533;
  width: 28px;
  height: 13px;
  border-radius: 0 0 30px 30px;
  top: 95px;
  left:37px;
}

Step3.

Add JavaScript

const avatar = document.getElementById('content');
const parallax = new Parallax(avatar, {
  invertX: false,
  invertY: false,
  limitX: 25,
  limitY: 25,  
});

To see the live output of the animation go to lenastanley.com.

Watch also the video tutorial:

Enjoy coding!

Categories
#SVG JavaScript Web development

Before & After – how to compare two images with JavaScript?

Today you’ll learn how to create a slider that compares two images.

before and after
Do you like this image? Check more images in the store.

Animation(move the slider to compare images):

*animation opened in the Safari browser.
To see the live output click here.

What do you need to do?

  1. Add HTML
  2. Add CSS
  3. Add JavaScript

Step1.

Add HTML

Add your images:

<div class="img-comp-container">
  <div class="img-comp-img">
    <img src="https://lenadesign.org/wp-content/uploads/2020/08/makeup.jpg" width="640" height="480">
  </div>
  <div class="img-comp-img img-comp-overlay">
    <img src="https://lenadesign.org/wp-content/uploads/2020/08/no-makeup.jpg" width="640" height="480">
  </div>
</div>

Step2.

Add CSS

Set the colour and the position of the background, and the container:

body {
  background-color: #eae2b7;
  display: flex; 
  align-items: center;
  justify-content: center;
  height: 100vh; 
}

.img-comp-container {
  left:-50px;
  position: relative;
  height: 480px; 
  width: 640px;
  border: 10px solid #e63946;
}

Set the position of the images:

.img-comp-img {
  position: absolute;
  width: auto;
  height: auto;
  overflow:hidden;
}

.img-comp-img img {
  display:block;
  vertical-align:middle;
}

Style the slider:

.img-comp-slider {
  position: absolute;
  cursor: ew-resize;
  width: 3px;
  height: 480px;
  background-color: white;
  color: white;
}

.img-comp-slider:after {
  content:"";
  position: absolute;
  top: 240px;
  left:-40px;
  width: 0;
  height: 0;
  border-top: 30px solid transparent;
  border-right: 40px solid #48bfe3;
  border-bottom: 30px solid transparent;  
}

.img-comp-slider:before {
  content:"";
  position: absolute;
  top: 240px;
  left:3px;
  width: 0;
  height: 0;
  border-top: 30px solid transparent;
  border-left: 40px solid #48bfe3;
  border-bottom: 30px solid transparent;  
  
}

.img-comp-slider:hover {
  box-shadow: 0 0 11px rgba(33,33,33,.2); 
}

Step3.

Add JavaScript

function initComparisons() {
  var x, i;
  x = document.getElementsByClassName("img-comp-overlay");
  for (i = 0; i < x.length; i++) {
    compareImages(x[i]);
  }
  function compareImages(img) {
    var slider, img, clicked = 0, w, h;
    w = img.offsetWidth;
    h = img.offsetHeight;
    img.style.width = (w / 2) + "px";
    
    /*slider:*/
    slider = document.createElement("DIV");
    slider.style.zIndex = "10";
    slider.setAttribute("class", "img-comp-slider");
    img.parentElement.insertBefore(slider, img);
    slider.style.left = (w / 2) - (slider.offsetWidth / 2) + "px";
    slider.addEventListener("mousedown", slideReady);
    window.addEventListener("mouseup", slideFinish);
    slider.addEventListener("touchstart", slideReady);
    window.addEventListener("touchend", slideFinish);
    function slideReady(e) {
      
      e.preventDefault();
      clicked = 1;
      window.addEventListener("mousemove", slideMove);
      window.addEventListener("touchmove", slideMove);
    }
    function slideFinish() {
      clicked = 0;
    }
    function slideMove(e) {
      var pos;
      if (clicked == 0) return false;
      pos = getCursorPos(e)
      if (pos < 0) pos = 0;
      if (pos > w) pos = w;
      slide(pos);
    }
    function getCursorPos(e) {
      var a, x = 0;
      e = e || window.event;
      a = img.getBoundingClientRect();
      x = e.pageX - a.left;
      x = x - window.pageXOffset;
      return x;
    }
    function slide(x) {
      img.style.width = x + "px";
      slider.style.left = img.offsetWidth - (slider.offsetWidth / 2) + "px";
    }
  }
}

initComparisons();

To see the live output check my Codepen.

Enjoy coding!

Categories
JavaScript Web development

JavaScript Toggle Class

Working as a web developer, you need to often add, remove, and toggle CSS classes based on the user interactions with elements on the web page.

JavaScript Toggle Class

Toggling the class means if there is no class name assigned to the element, then a class name can be assigned to it dynamically.

Toggle between adding and removing a class name from an element with JavaScript!

Example:

Step1.

Add HTML

Toggle between adding a class name to the div element with id=”myDIV” (in this example we use a button to toggle the class name).

<button onclick="myFunction()">Click me</button>

<div id="myDIV">
  This is a DIV element.
</div>

Step2.

Add CSS

Add a class name to toggle:

.mystyle {
  width: 100%;
  padding: 25px;
  background-color: lightblue;
  color: red;
  font-size: 25px;
}

Step3.

Add JavaScript

Get the <div> element with id=”myDIV” and toggle between the “mystyle” class:

function myFunction() {
  var element = document.getElementById("myDIV");
  element.classList.toggle("mystyle");
}

Output:

This is a DIV element.

Based on the knowledge above I created another example using SVG and JavaScript to toggle elements. To another see the example click here.

Enjoy coding!

Categories
CSS JavaScript JQuery Web development

JavaScript Progress Bar/ Bee Progress Bar

A progress bar can be used to show a user how far along he/she is in a process ( such as a download, file transfer, or installation).

honey bee
Do you like this image? Check more images in the store.

In this tutorial, you’ll learn how to create a simple progress bar using JavaScript, and after that, we’ll add some CSS and jQuery to create an animated progress bar.

I. Simple Progress Bar

To create a Simple Progress Bar you need to:

  1. Add HTML
  2. Add CSS
  3. Add JavaScript

Step1.

Add HTML

<div id="myProgress">
  <div id="myBar">0%</div>
</div>
<br>
<button onclick="move()">Click Me</button> 

Step2.

Add CSS

#myProgress {
  width: 100%;
  background-color: #839791;
}

#myBar {
  width: 1%;
  height: 30px;
  background-color: #896978;
  text-align: center;
  line-height: 30px;
  color: white;
}

Step3.

Add JavaScript

var i = 0;
function move() {
  if (i == 0) {
    i = 1;
    var elem = document.getElementById("myBar");
    var width = 0;
    var id = setInterval(frame, 20);
    function frame() {
      if (width >= 100) {
        clearInterval(id);
        i = 0;
      } else {
        width++;
        elem.style.width = width + "%";
        elem.innerHTML = width  + "%";
      }
    }
  }
}

Output:

II. Bee Progress Bar

Now, when you know how the progress bar works we will do step ahead!

*animation opened in the Safari browser.
*to see the live output of the animation click here.

To create the Bee Progress Bar follow the steps below:

  1. Add HTML
  2. Add CSS
  3. Add JavaScript/ jQuery

Step1.

Add HTML

 <div id="progress">
   <div id="text"><h1>Honey Bee</h1></div>
  <div id="bee">
    <div class="head"></div>
    <div class="feeler1"></div>
    <div class="feeler2"></div>
    <div class="eye"></div> 
    <div class="body"></div>
    <div class="leg1"></div>
    <div class="leg2"></div>
    <div class="wing1"></div>
    <div class="wing2"></div>
    <div class="sting"></div>
  </div>
    <div class="background">
    <div class="honey"></div>
    <div class="honey1"></div>
    <div class="honey2"></div>
  </div> 
  <div class="bar" id="bar"></div>
</div>

<button id="button" class="button" onclick="move()">Click Me</button> 

Step2.

Add CSS

Set the background colour and position of elements:

body{
   background-color: #f6ae2d;
   height: 100vh;
   display: flex;
   justify-content: center;
   align-items: center;
}

Style the Bee:

#bee {
  position: relative;
  left: 50px;
  top: -100px;
  z-index:100;
}

.head {
  border-radius: 50%;
  width: 50px;
  height: 50px;
  position: absolute; 
  background-color: #e9c46a;
}

.feeler1 {
  position: absolute;
  border-radius: 50%;
  box-shadow: inset 3px 3px 0px black;
  width: 20px;
  height: 20px;
  top: -12px;
  left: 10px;
}

.feeler1:after {
  position:absolute;
  content:"";
  width:8px;
  height:8px;
  border-radius:50%;
  background-color: black;
  left: 15px;
}

.feeler2 {
  position: absolute;
  border-radius: 50%;
  box-shadow: inset 3px 3px 0px black;
  width: 20px;
  height: 20px;
  top: -16px;
  left: 20px;
}

.feeler2:after {
  position:absolute;
  content:"";
  width:8px;
  height:8px;
  border-radius:50%;
  background-color: black;
  left: 15px;
}

.eye {
  position: absolute;
  width: 15px;
  height: 15px;
  background-color: white;
  border-radius: 50%;
  left: 25px;
  top:7px;  
}

.eye:after {
  content:"";
  position: absolute;
  background-color: black;
  border-radius:50%;
  width: 7px;
  height: 7px;
  top:5px;
  left:7px;
}

.body {
  position: absolute;
  width: 100px;
  height: 50px;
  border-radius: 50%;
  background: repeating-linear-gradient(
  to right,
  #000,
  #000 10px,
  #ffdc00 10px,
  #ffdc00 20px);
  z-index:-1;
  left: -75px;
  top:15px;
  
}

.sting {
  position:absolute;
  width: 0;
  height: 0;
  border-left: 30px solid transparent;
  border-right: 0px solid transparent;
  border-bottom: 15px solid #f0efeb;
  left:-90px;
  top:29px;
  z-index:-2;
}

.leg1 {
  position: absolute;
  border-radius: 50%;
  box-shadow: inset -3px 3px 0px black;
  width: 20px;
  height: 20px;
  top: 57px;
  left: -3px;
}

.leg1:after {
  position: absolute;
  content:"";
  border-radius: 50%;
  box-shadow: inset -3px 3px 0px black;
  width: 20px;
  height: 20px;
  left: -53px;
}

.leg2 {
  position: absolute;
  border-radius: 50%;
  box-shadow: inset -3px 3px 0px black;
  width: 20px;
  height: 20px;
  top: 45px;
  left: 5px;
  z-index:-3;
}

.leg2:after {
  position: absolute;
  content:"";
  border-radius: 50%;
  box-shadow: inset -3px 3px 0px black;
  width: 20px;
  height: 20px;
  top:7px;
  left: -68px;
}

.wing1 {
  position: absolute;
  background-color: #a8dadc;
  opacity: 0.7;
  width: 50px;
  height: 80px;
  border-radius: 50%;
  top:-53px;
  left:-48px;
  z-index:-4;
  transform-origin: top bottom;
	animation: fly 0.1s ease infinite;
}

.wing2 {
  position: absolute;
  background-color: #a8dadc;
  opacity: 0.7;
  width: 50px;
  height: 80px;
  border-radius:50%;
  top:-50px;
  left:-62px;
  transform-origin: top bottom;
  animation: fly 0.1s ease infinite;
}

Add animation to spin the wings:

@keyframes fly {
	0% {
		transform:rotate(-20deg);
	}
	50% {
		transform:rotate(-40deg);
	}
}

Style the progress bar and the button:

#progress {
  position: absolute;
  width: 50%;
  background-color: #f26419;
  border-radius:100px;
  border: 3px solid black;
  box-shadow: 5px 5px 2px rgba(0,0,0,0.07); 
  top: 250px;
  left:25%;
}

#progress:after {
  content:"";
  background-image: 
}

#bar {
  width: 1%;
  height: 30px;
  border-radius: 100px;
  background: repeating-linear-gradient(
  to right,
  #000,
  #000 10px,
  #ffdc00 10px,
  #ffdc00 20px   
);
  text-align: center;
  line-height: 30px;
  color: white;
}

.button {
  position: absolute;
  background-color: #fcca46;
  border: none;
  color: white;
  padding: 15px 32px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  border-radius:100px;
  cursor: pointer;
  -webkit-transition-duration: 0.4s; 
  transition-duration: 0.4s;
  top:300px;
  left:47%;
}

.button:hover {
  box-shadow: 0 12px 16px 0 rgba(0,0,0,0.24),0 17px 50px 0 rgba(0,0,0,0.19);
}

Add some decoration:

.background {
  position: absolute;
  left: 93%;
  top:-65px;
  
}

.honey {
      position: relative;
      width: 54px;
      box-sizing: content-box;
      border-width: 50px 18px 0;
      border-style: solid;
      border-color: #e09f3e transparent;
      z-index:-10;
    }

.honey:before {
      content: "";
      position: absolute;
      height: 0;
      width: 0;
      top: -85px;
      left: -18px;
      border-width: 0 45px 35px;
      border-style: solid;
      border-color: transparent transparent #e09f3e;
    }

.honey1 {
      position: relative;
      width: 54px;
      box-sizing: content-box;
      border-width: 50px 18px 0;
      border-style: solid;
      border-color: #e09f3e transparent;
      left: 70px;
      top:-10px;
      z-index:-10;
      transform: rotate(40deg);
    }

.honey1:before {
      content: "";
      position: absolute;
      height: 0;
      width: 0;
      top: -85px;
      left: -18px;
      border-width: 0 45px 35px;
      border-style: solid;
      border-color: transparent transparent #e09f3e;
    }

.honey2 {
      position: relative;
      width: 54px;
      box-sizing: content-box;
      border-width: 50px 18px 0;
      border-style: solid;
      border-color: #e09f3e transparent;
      left: 60px;
      top:-170px;
      z-index:-10;
      transform: rotate(-30deg);
    }

.honey2:before {
      content: "";
      position: absolute;
      height: 0;
      width: 0;
      top: -85px;
      left: -18px;
      border-width: 0 45px 35px;
      border-style: solid;
      border-color: transparent transparent #e09f3e;
    }

Add @keyframes to move the bee:

.moveright {
  animation: moveright 2s forwards;
}

@keyframes moveright {
  0% {left: 50px;}
  100% {left: 1000px;}

}
CSS Honey Bee Animation

Step3.

Add JavaScript/ jQuery

jQuery:

$(function() {
  $('#button').click(function() {
    $('#bee').addClass('moveright');
     setTimeout(function () {
    $("#bee").removeClass('moveright');
}, 4000);
  });
});

and JavaScript:

var i = 0;
function move() {
  if (i == 0) {
    i = 1;
    var elem = document.getElementById("bar");  
    var width = 10;
    var id = setInterval(frame, 15);
    function frame() {
      if (width >= 100) {
        clearInterval(id);
        i = 0;
      } else {
        width++;
        elem.style.width = width + "%";
        elem.innerHTML = width  + "%";
        
      }
    }
  }
}

To see the live output of the animation go to lenastanley.com.

Enjoy coding!

Categories
JavaScript Web development

JS Simple Signature Pad

Create the Signature Pad and export the file as PNG.

Signature Pad - Vector Image
Do you like this image? Check more images in the store.
*animation opened in the Safari browser.
To see the live output click here.

What do you need to do?

  1. Add HTML
  2. Add CSS
  3. Add JavaScript

Step1.

Add HTML

Create the canvas-wrap:

<div id="canvas-wrap">
<canvas id="canvas"></canvas>   
<div id="buttons">
       <div id="text">Please sign above</div>
       <input type="button" id="download" value="Save as PNG"/>
      <input type="button" id="clear" value="Clear">
    </div>
</div>

Step2.

Add CSS

body {
  background-color: #bee3db;
  height: 100vh;  
}

canvas {  
  background-color: #fff;
  border-radius: 15px;
  border: 5px solid black;
  box-shadow: 5px 4px 5px black;
  
}

#canvas-wrap {
  position: relative;
 
}

 #buttons {
        position: absolute;
        top: 370px;
        left: 170px;
        
      }
#buttons > input {
        padding: 10px;
        background-color: #839791;
        color: white;
        display: block-inline;
        margin-top: 5px;
      }

#text {
  position:relative;
  font-weight: bold;
  left: 25px;
}

Step3.

Add JavaScript

To drawing on the canvas:

var canvas = document.querySelector('canvas');
  canvas.style.position = 'absolute';
  canvas.style.top = "0";
  canvas.style.left = "0";

var ctx = canvas.getContext('2d');
canvas.width = 500;
canvas.height = 350;

ctx.lineWidth = 3;
ctx.lineJoin = ctx.lineCap = 'round';

var isDrawing, lastPoint;

canvas.onmousedown = function(event) {
  isDrawing = true;
  lastPoint = { x: event.clientX, y: event.clientY };
};

canvas.onmousemove = function(event) {
  if (!isDrawing) return;

  ctx.beginPath();
  
  ctx.globalAlpha = 1;
  ctx.moveTo(lastPoint.x, lastPoint.y);
  ctx.lineTo(event.clientX, event.clientY);
  ctx.stroke();
     
  lastPoint = { x: event.clientX, y: event.clientY };
};

canvas.onmouseup = function() {
  isDrawing = false;
};

To clear the canvas:

document.getElementById('clear').addEventListener('click', function() {
        ctx.clearRect(0, 0, canvas.width, canvas.height);
      }, false);

To export the file as PNG:

window.onload = function(){
var save = document.getElementById('download');

 save.onclick = function(){
    download(canvas, 'signature.png');
  }

}

function download(canvas, filename) {
  var lnk = document.createElement('a'), e;
  lnk.download = filename;
  lnk.href = canvas.toDataURL("image/png;base64");
  
  if (document.createEvent) {
    e = document.createEvent("MouseEvents");
    e.initMouseEvent("click", true, true, window,
                     0, 0, 0, 0, 0, false, false, false,
                     false, 0, null);

    lnk.dispatchEvent(e);
  } else if (lnk.fireEvent) {
    lnk.fireEvent("onclick");
  }
}

To see the live output check my Codepen.

Enjoy coding!

Categories
CSS HTML JavaScript JQuery Web development

Sketchborad JavaScript

sketch board javascript

Do you like sketching? Did you know that you can sketch on Java Script canvas too?

*animation opened in the Safari browser.
To see the live output of the animation click here.

What do you need to do?

To create the JavaScript sketch board you need to have the pencil cursor in .png/ SVG format (for practising you can use mine below) and follow the steps below:

  1. Add HTML
  2. Add CSS
  3. Add JavaScript/ jQuery

Step1.

Add HTML

Create the canvas-wrap, add canvas and buttons.

<div id="canvas-wrap">
  <div class="sketch-board">
    <div class="paper"></div>
  </div>
  <div class="paperclip"></div>
<canvas id="canvas"></canvas>
<button class="button" id="clear">Clear</button>
<button class="button" id="undo">Undo</button>
<button class="button" id="brushBlack">Black</button>
<button class="button" id="brushYellow">Yellow</button>
<button class="button" id="brushRed">Red</button>
<button class="button" id="brushBlue">Blue</button>
<button class="button" id="brushGreen">Green</button>

</div>

Step2.

Add CSS

Set the background colour and the size:

body {
  background-color: #EFD5C3;
  height: 100vh;  
}

Add canvas-wrap:

#canvas-wrap {
  position: relative;
  left: 35%;
}

And the canvas with mouse cursor:

canvas {  
  background-color: #fff;
  cursor: url(https://lenadesignorg.files.wordpress.com/2020/06/pencil.png?w=79) 5 80, auto;
  z-index:100;
}

Style the sketchboard:

.sketch-board {
  position: absolute;
  width: 700px;
  height: 500px;
  background-color: #c19875;
  z-index:-5;
  border-radius: 30px;
  left: -80px;
  box-shadow:inset 5px -5px 0 rgba(0,0,0,0.07);
}

.sketch-board:before {
  background-color: #EFD5C3;
  position: absolute;
  width: 50px;
  height: 170px;
  border-radius: 30px;
  content:"";
  left: 30px;
  top: 170px;
  box-shadow:inset 5px -5px 0 rgba(0,0,0,0.07);
}

.paper {
  background-color: #e6e3dc;
  width: 500px;
  height: 350px;
  position: absolute;
  top: 90px;
  left: 120px;
}

.paperclip {
  position: absolute;
  width: 150px;
  height: 40px;
  border: 7px solid #c0c0c0;
  border-radius: 20px;
  left: 200px;
  top: 25px;
  box-shadow: 5px -5px 0 rgba(0,0,0,0.07);
  z-index:1;
}

.paperclip:after {
  position: absolute;
  content:"";
  width: 200px;
  height: 30px;
  top: -20px;
  left:-25px;
  background-color: #8b786d;
  box-shadow:inset 5px -5px 0 rgba(0,0,0,0.07);
  border-radius: 20px;  
}

Style buttons:

.button {
  background-color: #00a6a6;
  border: none;
  border-radius:20px;
  color: #fff;
  padding: 7px 15px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 14px;
  margin: 4px 2px;
  top: 450px;
  left:45px;
  position: relative;
  transition-duration: 0.4s;
}

.button:hover {
  background-color: #73bfb8;
}
JavaScript drawing

Step3.

Add JavaScript/ jQuery

Note: Remember to add jQuery (code above) in the <head> section in your code.

var canvas = document.querySelector('canvas');
  canvas.style.position = 'absolute';
  canvas.style.top = "80px";
  canvas.style.left = "50px";

var ctx = canvas.getContext('2d');
canvas.width = 500;
canvas.height = 350;

var lastX;
var lastY;
var mouseX;
var mouseY;
var canvasOffset = $("#canvas").offset();
var offsetX = canvasOffset.left;
var offsetY = canvasOffset.top;
var isMouseDown = false;
var brushSize = 3;
var brushColor = "#000";

ctx.lineJoin = ctx.lineCap = 'round';

var points = [];


function handleMouseDown(e) {
    mouseX = parseInt(e.clientX - offsetX);
    mouseY = parseInt(e.clientY - offsetY);

    ctx.beginPath();
    if (ctx.lineWidth != brushSize) {
        ctx.lineWidth = brushSize;
    }
    if (ctx.strokeStyle != brushColor) {
        ctx.strokeStyle = brushColor;
    }
    ctx.moveTo(mouseX, mouseY);
    points.push({
        x: mouseX,
        y: mouseY,
        size: brushSize,
        color: brushColor,
        mode: "begin"
    });
    lastX = mouseX;
    lastY = mouseY;
    isMouseDown = true;
}

function handleMouseUp(e) {
    mouseX = parseInt(e.clientX - offsetX);
    mouseY = parseInt(e.clientY - offsetY);

    isMouseDown = false;
    points.push({
        x: mouseX,
        y: mouseY,
        size: brushSize,
        color: brushColor,
        mode: "end"
    });
}


function handleMouseMove(e) {
    mouseX = parseInt(e.clientX - offsetX);
    mouseY = parseInt(e.clientY - offsetY);

    if (isMouseDown) {
        ctx.lineTo(mouseX, mouseY);
        ctx.stroke();
        lastX = mouseX;
        lastY = mouseY;
       
        points.push({
            x: mouseX,
            y: mouseY,
            size: brushSize,
            color: brushColor,
            mode: "draw"
        });
    }
}

$("#canvas").mousedown(function (e) {
    handleMouseDown(e);
});
$("#canvas").mousemove(function (e) {
    handleMouseMove(e);
});
$("#canvas").mouseup(function (e) {
    handleMouseUp(e);
});


function redrawAll() {

    if (points.length == 0) {
        return;
    }

    ctx.clearRect(0, 0, canvas.width, canvas.height);

    for (var i = 0; i < points.length; i++) {

        var pt = points[i];

        var begin = false;

        if (ctx.lineWidth != pt.size) {
            ctx.lineWidth = pt.size;
            begin = true;
        }
        if (ctx.strokeStyle != pt.color) {
            ctx.strokeStyle = pt.color;
            begin = true;
        }
        if (pt.mode == "begin" || begin) {
            ctx.beginPath();
            ctx.moveTo(pt.x, pt.y);
        }
        ctx.lineTo(pt.x, pt.y);
        if (pt.mode == "end" || (i == points.length - 1)) {
            ctx.stroke();
        }
    }
    ctx.stroke();
}

function undoLast() {
    points.pop();
    redrawAll();
}

$("#brushGreen").click(function () {
    brushColor = "#89bd9e";
});
$("#brushYellow").click(function () {
    brushColor = "#fde74c";
});
$("#brushRed").click(function () {
    brushColor = "#e55934";
});
$("#brushBlue").click(function () {
    brushColor = "#5bc0eb";
});

$("#brushBlack").click(function () {
    brushColor = "#000";
});

var interval;
$("#undo").mousedown(function () {
    interval = setInterval(undoLast, 20);
}).mouseup(function () {
    clearInterval(interval);
});

var clear = function(){
  ctx.clearRect(0,0,500,350);
};

$('#clear').on("click",clear);

To see the live output of the animation go to my Codepen.

Enjoy coding!

Categories
CSS HTML JavaScript Web development

Roll the dice!

We know now how to toss a coin using JavaScript, so why not to try a roll the dice too?

CSS Dice 3d

Try to roll double six!

*animation opened in the Safari browser.
To see the live output of the animation click here.

To create the Dice game follow the steps below:

  1. Add HTML
  2. Add CSS
  3. Add JavaScript

Step1.

Add HTML

Create the Game container and another one for dice, and dots.

Note: to creating the dice you need to know how to create 3d cube. If you need more information about 3d cube and CSS perspective check the tutorial CSS Perspective Property, CSS Perspective-origin Property and 3d Cube.

 <div class="game">
    <div class="container">
      <div id='dice1' class="dice dice-one">
        <div id="dice-one-side-one" class='side one'>
          <div class="dot one-1"></div>
        </div>
        <div id="dice-one-side-two" class='side two'>
          <div class="dot two-1"></div>
          <div class="dot two-2"></div>
        </div>
        <div id="dice-one-side-three" class='side three'>
          <div class="dot three-1"></div>
          <div class="dot three-2"></div>
          <div class="dot three-3"></div>
        </div>
        <div id="dice-one-side-four" class='side four'>
          <div class="dot four-1"></div>
          <div class="dot four-2"></div>
          <div class="dot four-3"></div>
          <div class="dot four-4"></div>
        </div>
        <div id="dice-one-side-five" class='side five'>
          <div class="dot five-1"></div>
          <div class="dot five-2"></div>
          <div class="dot five-3"></div>
          <div class="dot five-4"></div>
          <div class="dot five-5"></div>
        </div>
        <div id="dice-one-side-six" class='side six'>
          <div class="dot six-1"></div>
          <div class="dot six-2"></div>
          <div class="dot six-3"></div>
          <div class="dot six-4"></div>
          <div class="dot six-5"></div>
          <div class="dot six-6"></div>
        </div>
      </div>
   </div>
    <div class="container">
      <div id='dice2' class="dice dice-two">
        <div id="dice-two-side-one" class='side one'>
          <div class="dot one-1"></div>
        </div>
        <div id="dice-two-side-two" class='side two'>
          <div class="dot two-1"></div>
          <div class="dot two-2"></div>
        </div>
        <div id="dice-two-side-three" class='side three'>
          <div class="dot three-1"></div>
          <div class="dot three-2"></div>
          <div class="dot three-3"></div>
        </div>
        <div id="dice-two-side-four" class='side four'>
          <div class="dot four-1"></div>
          <div class="dot four-2"></div>
          <div class="dot four-3"></div>
          <div class="dot four-4"></div>
        </div>
        <div id="dice-two-side-five" class='side five'>
          <div class="dot five-1"></div>
          <div class="dot five-2"></div>
          <div class="dot five-3"></div>
          <div class="dot five-4"></div>
          <div class="dot five-5"></div>
        </div>
        <div id="dice-two-side-six" class='side six'>
          <div class="dot six-1"></div>
          <div class="dot six-2"></div>
          <div class="dot six-3"></div>
          <div class="dot six-4"></div>
          <div class="dot six-5"></div>
          <div class="dot six-6"></div>
        </div>
      </div> 
   </div>
   <div id='roll' class='roll-button'><button>Roll dice!</button></div>
  </div> 

Step2.

Add CSS

Set the colour of the background, and the position of the elements.

body {
  background-color: #6a994e;
  perspective: 900px; 
  height: 100vh;
 }

.game {
  position: relative;
  width: 100%;
  height: 50%; 
}

.container {
  position: relative;
  display: inline-block;
  left:40%;
  top: 200px;

}

Style the button:

.roll-button {
  margin-left: 15px; }

button {
  position: absolute;
  left:55%;
  top:-350px;
  padding: 15px 50px;
  color: #fff;
  background-color: #f4d35e;
  border: none;
  font-size: 20px;
  border-radius: 20px; 
  box-shadow: 1px 3px #50514F;
  outline: none;
  transition: .3s; }

button:hover, button:active {
  outline: none;
  background: #50514F;
  cursor: pointer;
  margin-top: 15px; }

Add dice and dots:

.dice {
  position: relative;
  width: 100px;
  height: 100px;
  transform-style: preserve-3d;
  transition: transform 1s; }

.dot {
  position: absolute;
  width: 20px;
  height: 20px;
  margin: -10px 5px 5px -10px;
  border-radius: 20px;
  background-color: #ef233c;
  box-shadow: inset 2px 2px #d90429;}

.dice-one {
  left: 450px; }

.dice-two {
  left: 300px;
  top:-200px;
}

.side {
  position: absolute;
  background-color: #ffF;
  border-radius:5px;
  width: 100px;
  height: 100px;
  border: 1px solid #e5e5e5;
  text-align: center;
  line-height: 2em;
}

.side:nth-child(1) {
  transform: translateZ(3.1em); }

.side:nth-child(6) {
  transform: rotateY(90deg) translateZ(3.1em); }

.side:nth-child(3) {
  transform: rotateY(-90deg) translateZ(3.1em); }

.side:nth-child(4) {
  transform: rotateX(90deg) translateZ(3.1em); }

.side:nth-child(5) {
  transform: rotateX(-90deg) translateZ(3.1em); }

.side:nth-child(2) {
  transform: rotateY(-180deg) translateZ(3.1em); }

.two-1, .three-1, .four-1, .five-1, .six-1 {
  top: 20%;
  left: 20%; }

.four-3, .five-3, .six-4 {
  top: 20%;
  left: 80%; }

.one-1, .three-2, .five-5 {
  top: 50%;
  left: 50%; }

.four-2, .five-2, .six-3 {
  top: 80%;
  left: 20%; }

.two-2, .three-3, .four-4, .five-4, .six-6 {
  top: 80%;
  left: 80%; }

.six-2 {
  top: 50%;
  left: 20%; }

.six-5 {
  top: 50%;
  left: 80%; 
}
3d roll dice javascript

Add .show elements which will spin the dice:

.show-1 {
  transform: rotateX(720deg) rotateZ(-720deg); }

.show-6 {
  transform: rotateX(-900deg) rotateZ(1080deg); }

.show-3 {
  transform: rotateY(-450deg) rotateZ(-1440deg); }

.show-4 {
  transform: rotateY(810deg) rotateZ(720deg); }

.show-5 {
  transform: rotateX(-810deg) rotateZ(-1080deg); }

.show-2 {
  transform: rotateX(450deg) rotateZ(-720deg); }

Step3.

Add JavaScript

Note: To generate a random number of the dice dots we need to use Math.floor(Math.random() * 6) + 1;
If Math.random() were to roll 0.9, we take that and multiply it by 6 which gives us 5.4. Then we take the floor of that which is 5. Then we add 1 which gives us a final result of 6. So the random numbers will only be between 1 and 6.

var elDiceOne       = document.getElementById('dice1');
var elDiceTwo       = document.getElementById('dice2');
var elComeOut       = document.getElementById('roll');

elComeOut.onclick   = function () {rollDice();};

function rollDice() {

  var diceOne   = Math.floor((Math.random() * 6) + 1);
  var diceTwo   = Math.floor((Math.random() * 6) + 1);
 
  console.log(diceOne + ' ' + diceTwo);

  for (var i = 1; i <= 6; i++) {
    elDiceOne.classList.remove('show-' + i);
    if (diceOne === i) {
      elDiceOne.classList.add('show-' + i);
    }
  }

  for (var k = 1; k <= 6; k++) {
    elDiceTwo.classList.remove('show-' + k);
    if (diceTwo === k) {
      elDiceTwo.classList.add('show-' + k);
    }
  } 
  setTimeout(rollDice(), 1000);
}

To see the live output of the animation go to lenastanley.com.

Enjoy coding!

Categories
#SVG JavaScript Web development

Baggage Scan /SVG & JavaScript Animation

SVG luggage

Scan the luggage!

*animation opened in the Safari browser.
To see the live output of the animation click here.

To create the animation you need to have two images of the luggage (closed and open) in SVG/ png format (to practise only you can use mine which I drew in Adobe Illustrator CC) and follow the steps below:

  1. Add HTML
  2. Add CSS
  3. Add JavaScript
luggage
luggage inside

Step1.

Add HTML

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink= "http://www.w3.org/1999/xlink">
  <rect width="100%" height="auto" fill="#ffb4a2"/>
  <image xmlns:xlink= "http://www.w3.org/1999/xlink" xlink:href="https://lenadesign.org/wp-content/uploads/2020/06/luggage.png?w=640" width="100%" height="100%" />
</svg>

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink= "http://www.w3.org/1999/xlink">
  <defs>
    <clipPath id="mask">
      <circle id="scan" cx="50%" cy="50%" r="8%" />
    </clipPath>
  </defs>
  <g clip-path="url(#mask)">
    <rect width="100%" height="100%" fill="#434373"/>
    <image xmlns:xlink= "http://www.w3.org/1999/xlink" xlink:href="https://lenadesign.org/wp-content/uploads/2020/06/luggage-inside.png?w=640" width="100%" height="100%" />
  </g>
</svg>

Step2.

Add CSS

body {
  background-color:#ffb4a2;
  height: 100vh;  
}

svg {
  position: absolute;
  top: 100px;
  left: 15%;
  width: 70%;
  height: 70%;
}

Step3.

Add JavaScript

var svgElement = document.querySelector("svg");
var maskedElement = document.querySelector("#scan");
var svgPoint = svgElement.createSVGPoint();

function cursorPoint(e, svg) {
    svgPoint.x = e.clientX;
    svgPoint.y = e.clientY;
    return svgPoint.matrixTransform(svg.getScreenCTM().inverse());
}

function update(svgCoords) {
    maskedElement.setAttribute('cx', svgCoords.x);
    maskedElement.setAttribute('cy', svgCoords.y);
}

window.addEventListener('mousemove', function(e) {
  update(cursorPoint(e, svgElement));
}, false);

document.addEventListener('touchmove', function(e) {
    e.preventDefault();
    var touch = e.targetTouches[0];
    if (touch) {
        update(cursorPoint(touch, svgElement));
    }
}, false);

To see the live output of the animation go to lenastanley.com.

Enjoy coding!

Categories
JavaScript Web development

Heads or Tails? Coin Flip JS

Heads or tails? Can’t decide? 🙂

Coin tossing JS

Flip coin with JavaScript!

*animation opened in the Safari browser.
To see the live output click here.

What do you need to do?

To create coin flip animation you will need two images of the coin (front and back) in .png format (to practise you can use these below) and follow the steps below:

  1. Add HTML
  2. Add CSS
  3. Add CSS Animation
  4. Add JavaScript

Step1.

Add HTML

<div id="coin"></div>
<div id="button">Toss a coin</div>

Step2.

Add CSS

body {
  background-color: #457b9d; 
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;  
}

#coin {
   position: relative;
}

#button {
  background-color:#e9c46a;
  color:#fff;
  padding:15px 15px;
  border-radius:30px;
  display:inline-block;
  transition:0.5s;
  cursor:pointer;
}

#button:hover {
    opacity:0.5;
    background-color: #ef233c;
  }

Step3.

Add CSS Animation

.animate-coin {
  animation: flip 2s 1;
}

@keyframes flip {
  0% {
    transform: scale3d(1,1,1) rotateX(0deg);
    
  }
  50% {
    transform: scale3d(1,1,1) rotateX(3600deg);
    
  }
  100% {
    transform: scale3d(1,1,1) rotateX(7200deg);
    
  }
}

Step4.

Add JavaScript

var coin = document.getElementById("coin");
var button = document.getElementById("button");
var heads = 0;
var tails = 0;

/* On click of button spin coin ainamtion */
function coinToss() {
  /* Random number 0 or 1  */
  var x = Math.floor(Math.random() * 2);
  /* If statement */
  if (x === 0) {
    coin.innerHTML = '<img class="heads animate-coin" src="https://lenadesign.org/wp-content/uploads/2020/06/head.png?w=100"/>';   
    heads += 1;
   
  } else {
    coin.innerHTML = '<img class="tails animate-coin" src="https://lenadesign.org/wp-content/uploads/2020/06/tail.png?w=100"/>';
     tails += 1;
  }
}

button.onclick = function() {
  coinToss();
}

To see the live output of the animation go to lenastanley.com.

Enjoy coding!

Categories
JavaScript Web development

JS Typing Effect

Learn how to create a typing effect with JavaScript.

Learn how to create a typing effect with JavaScript

To create the Typing Effect with JavaScript follw the step below:

  1. Add HTML
  2. Add CSS (optional)
  3. Add JavaScript
*animation opened in the Safari browser.
To see the live output of the animation click here.

Step1.

Add HTML

<div class="container">
  <div class="face">
    <div class="smile"></div>
  </div>
<div id="text"></div>
</div>

Step2.

Add CSS

Style the text:

body {
  background-color: #2a9d8f; 
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  
}
.container {
  position: relative;
  top:0;
  left:30%;
  width:100%;
}

#text {
   position: absolute;
   color: #e9c46a;
   font-size: 50px;
   font-family: "Courier New", Courier, monospace;
   letter-spacing: 10px;
   text-shadow: 3px 5px 0px rgba(0, 0, 0, 0.7);
   
}

.face {
  position: absolute; 
  border-radius:50%;
  background-color: #ffe066;
  width:200px;
  height:200px;
  z-index:-5;
  left:270px;
  top:-80px;
  box-shadow: inset 5px 5px #f5cb5c, 5px 5px rgba(0,0,0,0.07);
  
  
}

.face:after {
  content:"";
  position: absolute;
  border-radius:50%;
  background-color: black;
  width:20px;
  height:20px;
  left:70px;
  top:60px;
  -webkit-transform-origin: 50%;
  -webkit-animation: blink 2s infinite;
}

.face:before {
  content:"";
  position: absolute;
  border-radius:50%;
  background-color: black;
  width:20px;
  height:20px;
  left:115px;
  top:60px;
  -webkit-transform-origin: 50%;
  -webkit-animation: blink 2s infinite;
}

.smile {
  position: absolute;
  top: 100px;
  left: 65px;
  width: 80px;
  height: 40px;
  border-radius: 0 0 100px 100px;
  overflow: hidden;
  background:#000;
}
  
.smile:after {
  content:"";
  position: absolute;
  top: 15px;
  left: 12px;
  width: 70%;
  height: 70%;
  border-radius: 100px 100px 0 0;
  background: #e56b6f;
  
}

@-webkit-keyframes blink {
    0%, 100% {
        transform: scale(1, .05);
    }
    5%,
    95% {
        transform: scale(1, 1);
    }
}
JS Typing Effect

Step3.

Add JavaScript

Type your text:

var text = document.getElementById('text');

var typewriter = new Typewriter(text, {
    loop: true
});

typewriter.typeString('Hello!')
    .pauseFor(2500)
    .deleteAll()
    .typeString('How are you today?')
    .pauseFor(2500)
    .deleteAll()
    .typeString('Have a nice day :)')
    .pauseFor(2500)
    .start();

Note: Don’t forget to add the JS library to your code!

<script src="https://cdnjs.cloudflare.com/ajax/libs/TypewriterJS/1.0.0/typewriter.min.js"></script>

To see the live output of the animation go to lenastanley.com.

Watch also the video tutorial:

Enjoy coding!