@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;700&display=swap");
* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  width: 100vw;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #ecf0f1;
}

nav {
  background-color: white;
  border-radius: 3px;
  padding: 10px;
  box-shadow: rgba(0, 0, 0, 0.1) 0px 0px 5px 0px, rgba(0, 0, 0, 0.1) 0px 0px 1px 0px;
}
nav ul li {
  list-style: none;
  display: inline-block;
  padding: 15px 35px;
  font-size: 16px;
  cursor: pointer;
  position: relative;
  z-index: 2;
  transition: 0.1s;
  /***************/
}
nav ul li::after {
  position: absolute;
  content: "";
  height: 100%;
  width: 100%;
  background-color: #e74c3c;
  border-radius: 3px;
  top: 100%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
  opacity: 0;
  transition: 0.5s;
}
nav ul li:hover::after {
  opacity: 1;
  top: 50%;
}
nav ul li:hover a {
  color: white;
}
nav ul li a {
  text-decoration: none;
  color: #777;
  font-weight: 500;
}