CODE EXAMPLE FOR CSS

instagram gradient css

<style>
.insta-icon {
  position: relative;
  width: 36px;
  height: 36px;
  border-radius: 20%;
  background: radial-gradient(circle at 33% 100%, #fed373 4%, #f15245 30%, #d92e7f 62%, #9b36b7 85%, #515ecf)
}
.insta-icon:after,
.insta-icon:before {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 25px;
  height: 25px;
  border: 2px solid #fff;
  transform: translate(-50%, -50%);
  content: ''
}
.insta-icon:before {
  border-radius: 20%
}
.insta-icon:after {
  width: 11px;
  height: 11px;
  border-radius: 50%
}
</style>
<div class="insta-icon"></div>