@import url('https://fonts.googleapis.com/css?family=Poppins:200,300,400,500,600,700,800,900&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

.container {
  width: 80vw;
}

img {
  width: 20%;
}

ul {
  position: relative;
}

ul li {
  list-style: none;
  text-align: center;
}

ul li a {
  color: #333;
  text-decoration: none;
  font-size: 25px;
  padding: 5px 20px;
  display: inline-flex;
  transition: 0.5s;
}

ul:hover li a {
  color: #0002;
}

ul li:hover a {
  color: rgb(90, 90, 90);
  background: rgba(255, 255, 255, 1);
  text-decoration: none;
  border-radius: 30px;
}

ul li a:before {
  content: '';
  position: absolute;
  top: 50%;
  left: 40%;
  transform: translate(-50%, -50%);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 5em;
  color: rgba(0, 0, 0, .1);
  border-radius: 50%;
  z-index: -1;
  opacity: 0;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 500px;
  transition: letter-spacing 0.5s, left 0.5s;
}

ul li a:hover:before {
  content: attr(data-text);
  opacity: 1;
  left: 50%;
  letter-spacing: 10px;
  width: 1800px;
  height: 1800px;
}

@media (max-width: 1500px) {
  ul li a:hover:before {
    width: 1500px;
    height: 1500px;
  }

  ul li a:before {
    font-size: 4.5em;
  }
}

@media (max-width: 1200px) {
  ul li a:hover:before {
    width: 1200px;
    height: 1200px;
  }

  ul li a:before {
    font-size: 3em;
  }
}

@media (max-width: 770px) {
  ul h1 {
    font-size: 6vw;
  }

  img {
    width: 50%;
  }

  ul li a:hover:before {
    width: 1000px;
    height: 1000px;
  }

  ul li a:before {
    font-size: 2.8em;
  }

  ul li a {
    font-size: 16px;
  }

  ul li .version {
    font-size: 10px;
  }
}

@media (max-width: 425px) {
  ul li a:hover:before {
    width: 1000px;
    height: 1000px;
  }

  img {
    width: 50%;
  }

  ul li a:before {
    font-size: 3.5em;
  }

  ul li a {
    font-size: 15px;
  }

  ul li .version {
    font-size: 10px;
  }
}

ul li:nth-child(6n+3) a:before {
  background: #2C6169;
}

ul li:nth-child(6n+4) a:before {
  background: #3a818b;
}

ul li:nth-child(6n+5) a:before {
  background: #499eac;
}

ul li:nth-child(6n+6) a:before {
  background: #56bccc;
}

ul li:nth-child(6n+1) a:before {
  background: #8fd8e4;
}

ul li:nth-child(6n+2) a:before {
  background: #ffee00;
}

ul h1 {
  color: rgb(39, 39, 39);
  margin-bottom: 1.5em;
  margin-top: 1.0em;
  text-transform: uppercase;
}

body,
article {
  margin: 0;
  padding: 0;
  border: 0;
  outline: 0;
}

section {
  display: block;
}

#about {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.version {
  color: #06c;
  font-size: 15px;
  margin-top: 1.5em;
  cursor: pointer;
}