index.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Baloo Tamma 2", cursive;
}

body {
  height: 100vh;
  width: 100%;
  background-color: rgb(214, 207, 207);
}

.container {
  display: flex;
  text-align: center;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.nav {
  display: flex;
  justify-content: space-evenly;
  align-items: center;
  width: 220vh;
  height: 60px;
  background-color: rgb(70, 66, 66);
}

a {
  text-decoration: none;
  font-size: 20px;
  color: white;
}

a:hover {
  color: rgb(114, 223, 114);
}

.content {
  margin: 20px auto;
  background: rgb(247, 242, 242);
  width: 600px;
  border-radius: 20px;
  height: 400px;
  box-shadow: 10px 10px 10px gray;
  padding: 20px;
}

.active {
  color: rgb(114, 223, 114);
}