/* Setting up a box to add the inner shadow to */
.box {
  margin: 4rem auto;
  width: 50%;
  padding: 1rem;
  text-align: center;
  border-radius: 1rem;
}

/* Inner shadow with multiple insets */
.inner-shadow {
  width: 150px;
  height: 150px;
  box-shadow: inset rgba(60, 70, 85, 0.5) 0px 0px 40px 0px, inset rgba(60, 70, 85, 0.5) 0px 0px 40px 0px, inset rgba(0, 0, 0, 1) 0px 0px 36px -24px;
}