<div class="gradient">
  
</div>
div {
  height: 100px;
  background-color: red;
  background-image:
    linear-gradient(
      to top right, 
      red, #f06d06
    );
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js