style.css

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100vh;
  justify-content: center;
  font-family: sans-serif;
  background: linear-gradient(135deg, purple 20%, orange 80%);
}

.menu {
  background: lightgrey;
  width: 300px;
  opacity: 0.3;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px;
  cursor: pointer;
}

.menu .fas{
    transition: transform .2s;
}

.menu p {
  margin: 0 10px;
  display: flex;
  align-items: center;
}

.social-lists {
  background: lightgray;
  width: 300px;
  padding: 10px;
  opacity: 0.3;
  list-style-type: none;
  border-radius: 5px;
}

.social-lists li {
  display: flex;
  align-items: center;
  cursor: pointer;
  transition: padding 0.2s linear;
}

.social-lists li:hover {
  background: darkgray;
  border-radius: 5px;
  padding-left: 10px;
}

.social-lists li .fab {
  margin: 0 10px;
}

.rotate .fas {
  transform: rotate(180deg);
}

.hide {
  visibility: hidden;
}