body {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  font-family: sans-serif;
}

ul {
  margin: 0;
  padding: 0;
  display: flex;
  list-style-type: none;
}

ul li a {
  display: block;
  width: 120px;
  height: 40px;
  line-height: 40px;
  text-align: center;
  color: red;
  text-transform: capitalize;
  text-decoration: none;
  position: relative;
  transition: all 0.5s;
  color: #262626;
}

a:hover {
  color: white;
}

ul li span {
  position: absolute;
  width: 100%;
  height: 25%;
  background-color: #262626;
  z-index: -1;
  left: 0;
  top: 0;
  transform: scaleX(0);
  transition: all 0.5s;
  transform-origin: left;
}

a:hover span {
  transform: scaleX(1);
}

span:nth-child(2) {
  top: 25%;
  transition-delay: 0.15s;
}

span:nth-child(3) {
  top: 50%;
  transition-delay: 0.3s;
}

span:nth-child(4) {
  top: 75%;
  transition-delay: 0.45s;
}