*{
  margin: 0;
  padding: 0;
  list-style: none;
  text-decoration: none;
  box-sizing: border-box;
}

.nave{
  position: fixed;
  width: 50px;
  margin-top: 250px;
  transition: all 0.3s linear;
  box-shadow: 2px 2px 8px 0px rgba(0,0,0,.4);
}
.nave li{
  height: 60px;
  position:relative;
}
.nave li a{
  color: white;
  display: block;
  height: 100%;
  width: 100%;
  line-height: 60px;
  padding-left:10%;
  border-bottom: 1px solid rgba(0,0,0,.4);
  transition: all .3s linear;
}
.nave li:nth-child(1) a{
  background: #4267B2;
}
.nave li:nth-child(2) a{
  background: #1DA1F2;
}
.nave li:nth-child(3) a{
  background: #E1306C;
}
.nave li:nth-child(4) a{
  background: #01B409;
}
.nave li:nth-child(5) a{
  background: #ff0000;
}
.nave li a i{
  position:absolute;
  top: 17px;
  left: 12px;
  font-size: 25px;
}
.nave ul li a span{
  display: none;
  font-weight: bold;
  letter-spacing: 1px;
  color:#FFFFFF;	 
  text-transform: uppercase;
}
span a:hover {
  z-index:1;
  width: 200px;
  border-bottom: 1px solid rgba(0,0,0,.5);
  box-shadow: 0 0 1px 1px rgba(0,0,0,.3);
  color:#FFFFFF;
}
.nave ul li:hover a span{
  padding-left: 30%;
  display: block;
  color:#FFFFFF;
}