.ribbon {
  position: relative;
  top: 1.9rem;
  width: 15rem;
  box-shadow: 0 0.4rem 1rem 0 rgba(0, 0, 0, 0.2), 0 0.4rem 2rem 0 rgba(0, 0, 0, 0.19);
  background-color: #ebb134;
  color: #fff;
}
.ribbon-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  height: 15rem;
  width: 15rem;
  overflow: hidden;
}
.ribbon-top-left {
  left: -4.5rem;
  transform: rotate(-45deg);
}
.ribbon-top-right {
  right: -4.5rem;
  transform: rotate(45deg);
}