CSS Gradient Border

Demo:

To create the CSS Gradient border follow the steps below and watch the video tutorial:

Step1.

Add HTML

If you want to create square/ rectangle border:

<div class="container">
  <div class="gradient">
Type your text here...
  </div>  
</div>

If you want to create rounded border:

<div class="container-radius">
  <div class="gradient-border-radius">
Type your text here...
  </div>  
</div>

Step2.

Add CSS

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

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

To read more how to create the gradient in CSS click here.

CSS for Square/ Rectangle border:

.container {
  max-width: 250px;
  position: relative;
  background-color: #4158D0;
  background-image: linear-gradient(43deg, #4158D0 0%, #C850C0 46%, #FFCC70 100%);
  padding: 5px;   
  margin-right:25px;
}

.gradient {
  background-color: #fff;
  padding: 2rem;
  color: black;  
}

CSS for Rounded border:

.container-radius {
  max-width: 250px;
  position: relative;
  background-color: #4158D0;
  background-image: linear-gradient(43deg, #4158D0 0%, #C850C0 46%, #FFCC70 100%);
  padding: 5px;
  border-radius: 7%;  
}

.gradient-border-radius {
  background-color: #fff;
  padding: 2rem;
  color: black;
  border-radius: 5%;  
}

Watch also the video tutorial:

Enjoy coding!

Read also:

How to create a gradient border using a CSS conic gradient?

CSS Conic-Gradient