Birthday Cake – CSS Animation

Demo:

To create the CSS Birthday Cake animation follow the steps below and watch the video tutorial.

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

Step 1.

Add HTML

<div class="birthday-cake">
  <div class="holder"></div>
  <div class="shadow"></div>
  <div class="cake">
    <div class="chocolate"></div>
  </div>
  <div class="candle"></div>
  <div class="flame"></div>
</div>

Step 2.

Add CSS

Set the colour and the position of the background and elements:

body {
  background-color: #68b0ab;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.birthday-cake {
  position: relative; 
  top:20px;
}

Style the cake holder and the shadow:

.holder {
  position:absolute;
  width:350px;
  height:20px;
  border-radius:100px;
  background-color: #212F3C;
  left:-140px;
  top:10px;  
}

.holder:before {
  content:"";
  position:absolute;
  width:100px;
  height:150px;
  background-color: #CACFD2;
  left:130px; 
  top:20px;
}

.holder:after {
  content:"";
  position:absolute;
  background-color:#68b0ab;
  width: 100px;
  height:135px;
  border-radius:30px 30px 0 0;
  left:65px;
  top:20px;
  box-shadow: 125px 0 #68b0ab;
}

.shadow {
  position:absolute;
  width:350px;
  height:20px;
  border-radius:50%;
  top:170px;
  left:-135px;
  background-color: rgba(0,0,0,0.095);
  z-index:1;
}

.shadow:before {
  content:"";
  position: absolute;
  background-color: #CACFD2;
  width:150px;
  height:20px;
  border-radius:20px;
  top:-10px;
  left:96px;
}

Style the cake:

.cake {
  position:absolute;
  overflow:hidden;
  width:275px;
  height:140px;
  background-color: #FAD7A0;
  top:-130px;
  left:-101px;
  border-radius:30px 30px 0 0;  
}

.cake:before {
  content:"";
  background-color: #935116;
  width:275px;
  height:15px;
  position:absolute;
  top:75px;
  box-shadow: 0 30px #935116;
}

.cake:after {
  content:"";
  position: absolute;
  background-color: #573612;
  width:275px;
  height:40px;
  box-shadow:inset 0 10px rgba(0,0,0,0.07);
}

.chocolate {
  position:absolute; 
  background-color: #573612;
  width:25px;
  height:45px;
  top:25px;
  left:0;
  z-index:2;
  border-radius:50px;
  box-shadow: 25px 2px #FAD7A0, 50px -10px #573612, 75px -5px #FAD7A0, 100px 3px #573612, 125px 0 #FAD7A0, 150px -5px #573612, 175px 3px #FAD7A0, 200px -5px #573612, 225px -10px #FAD7A0, 250px 4px #573612;
}

Style the candle and the flame:

.candle {
  position:absolute; 
  width: 15px;
  height:70px;
  background-color: white;
  top:-200px;
  left:30px;
  box-shadow:inset 0 -10px 0 #E74C3C;
}

.candle:before {
  position:absolute;
  width:15px;
  height:15px;
  background-color:#E74C3C;
  content:"";
  top:10px;
  box-shadow: 0 25px #E74C3C;
}

.candle:after {
  content:"";
  width:2px;
  height:15px;
  content:"";
  position:absolute;
  background-color:black;
  top:-15px;
  left:6px;
}

.flame {
  position:absolute;
  background-color: #F4D03F;
  opacity:0.9;
  box-shadow:inset 0 -5px 5px #D35400, 5px -5px 20px #FBFFA3;
  width:20px;
  height:30px;
  top:-240px;
  border-radius:50%;
  left:26.5px;
  animation: flame 0.5s infinite;
    
}

Step 3.

Add CSS Animation

Light a candle:

@keyframes flame {
  from, to { transform: scale(1, 1); }
  25% { transform: scale(0.9, 1.1); }
  50% { transform: scale(1.1, 0.9); }
  75% { transform: scale(0.95, 1.05); }
}
  

Watch also the video tutorial:

Enjoy coding!