SCSS

by Bartek Legięć

HTML

<div class="dynamic-shadow"></div>

SCSS

.dynamic-shadow {
  position: relative;
  width: 300px;
  height: 300px;
  z-index: 1;
  background-image: linear-gradient(135deg, #1e5799 0%, #FF0000 100%);
  background-size: cover;
  border-radius: 5px;
  
  &::before{
    content: '';
    width: 100%;
    height: 100%;
    position: absolute;
    background: inherit;
    top: 0;
    left: 0;
    opacity: 1;
    z-index: 2;
    border-radius: inherit;
  }

  &::before {
    filter: blur(50px);
    opacity: 1;
    z-index: 1;
  }
}
  
/* This is to make it pretty */
  
body {
  background: #151515;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  width: 100vw;
  margin: 0;
  padding: 16px;
  box-sizing: border-box;
}