<div class="gradient"></div>
.gradient {
  height: 250px;
  width: 250px;
  background-color: #ff8a00;
  background-image: radial-gradient(
    circle at top right,
    #ff8a00,
    #e52e71 50%
  ); /* 50% creates a slightly harder stop for the demo */
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

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