body {
  font: 1em "PT Sans", Tahoma, Arial;
  text-transform: uppercase;
}

/* Main menu  */

.nav {
  list-style: none;
  padding: 0;
  margin: 30px;
  width: 50px;
  opacity: .5;
  transform: opacity .3s ease-in-out;
}

.nav:hover {
    opacity: 1;
}

.nav li {
  height: 50px;
  width: 50px;
  overflow: hidden;
  transition: width .2s ease-in-out, height .2s ease-in-out .2s;
}

.nav li:hover {
    width: 200px;
    height: 175px;
}

.nav li a {
  display: block;
  width: 200px;
  height: 40px;
  line-height: 40px;
  text-decoration: none;
  background: #bbb;
  margin: 1px;
  color: #fff;
  padding-left: 15px;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.nav li a:hover {
  background: #2fc5ff;
}

.nav li a:first-child {
  font-size: 1.1em;
  height: 50px;
  line-height: 50px;
  position: relative;
  text-indent: 36px;
}

.nav li a:first-child::before {
  content: "";
  position: absolute;
  display: block;
  width: 32px;
  height: 32px;
  top: 9px;
  left: 9px;
}

.main-menu a:first-child::before {
  background: url(./home.png) center no-repeat;
}

.settings a:first-child::before {
  background: url(./settings.png) center no-repeat;
}

.link a:first-child::before {
  background: url(./link.png) center no-repeat;
}
.search a:first-child::before {
  background: url(./search.png) center no-repeat;
}