.cornerLeft {
  content: "";
  position: absolute;
  top: -2px;
  left: -40px;
  height: 40px;
  width: 40px;
  border-bottom-right-radius: 25%;
  box-shadow: 0 20px 0 0 rgba(var(--color-body), 1)
}
.cornerRight {
  content: "";
  position: absolute;
  top: -2px;
  right: -40px;
  height: 40px;
  width: 40px;
  border-bottom-left-radius: 25%;
  box-shadow: 0 20px 0 0 rgba(var(--color-body), 1)
}