.del {
  position: relative;
  top: 0;
  left: 0;
  width: 160px;
  height: 50px;
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.del div {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: none;
  box-shadow: 4px 4px 6px 0 rgba(255,255,255,.5),
              -4px -4px 6px 0 rgba(116, 125, 136, .5), 
    inset -4px -4px 6px 0 rgba(255,255,255,.2),
    inset 4px 4px 6px 0 rgba(0, 0, 0, .4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  letter-spacing: 1px;
  color: #ff0000;
  z-index: 1;
  transition: .6s;
}

.del:hover div {
  letter-spacing: 4px;
  color: #fff;
  background: #ff0000;
}