* {
  box-sizing: border-box;
}

body {
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: sans-serif;
  overflow: hidden;
}

a {
  text-decoration: none;
  width: 160px;
  height: 60px;
  color: black;
  line-height: 60px;
  text-align: center;
  text-transform: capitalize;
  font-size: 25px;
  position: relative;
  transition: all 0.2s;
  overflow: hidden;
}

a span {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-color: transparent;
  border: 2px solid black;
  z-index: -1;
}

span:before {
  content: "";
  position: absolute;
  width: 8%;
  height: 500%;
  background-color: white;
  top: 50%;
  left: 50%;
  transition: all 0.2s;
  transform: translate(-50%, -50%) rotate(-60deg);
}

a:hover span:before {
  width: 100%;
  background-color: black;
  transform: translate(-50%, -50%) rotate(60deg);
}

a:hover {
  color: white;
}