*{
  padding:0;
  margin:0;
  border:0;
}

body{
  color:#FFF;
  background:#A9A9A9;
  font:1em/1 Helvetica,"Myriad Pro",Arial,sans-serif;
  padding:1em;
}

ul{
  display:table;
  width:100%;
  border-collapse:separate;
  border-spacing:1px 1px;
  margin-bottom:1em;
}

li{
  display:table-cell;
  border:1px solid #000;
}


/*a partir de aqui lo he copiado de internet entendiendo 
como funciona cada cosa
 */


li:first-child{
  -moz-border-radius:5px 0 0 5px;
  -webkit-border-radius:5px 0 0 5px;
  border-radius:5px 0 0 5px;
}

li:last-child{
  -moz-border-radius:0 5px 5px 0;
  -webkit-border-radius:0 5px 5px 0;
  border-radius:0 5px 5px 0;
}

li:first-child a{
  -moz-border-radius:3px 0 0 3px;
  -webkit-border-radius:3px 0 0 3px;
  border-radius:3px 0 0 3px;
}

li:last-child a{
  -moz-border-radius:0 3px 3px 0;
  -webkit-border-radius:0 3px 3px 0;
  border-radius:0 3px 3px 0;
}

li a{
  display:block;
  color:#FFF;
  text-shadow:0 -1px 1px rgba(0,0,0,.9);
  text-decoration:none;
  text-transform:uppercase;
  text-align:center;
  padding:15px 10px;
  position:relative;
  background:-moz-linear-gradient(top,rgba(255,255,255,.2),rgba(255,255,255,.1) 50%,transparent 50%);
  background:-webkit-gradient(linear,0 0,0 100%,color-stop(0,rgba(255,255,255,.2)),color-stop(0.5,rgba(255,255,255,.1)),color-stop(0.5,transparent)); 
  background:-o-linear-gradient(top,rgba(255,255,255,.2),rgba(255,255,255,.1) 50%,transparent 50%);
  background:linear-gradient(top,rgba(255,255,255,.2),rgba(255,255,255,.1) 50%,transparent 50%);
  background-color:#000;
  -moz-transition-duration:.3s;
  -webkit-transition-duration:.3s;
  -o-transition-duration:.3s;
  transition-duration:.3s;
}

a:hover,a:focus{
  background-color:#525564;
}

a:after{
  content:" ";
  height:5px;
  position:absolute;
  bottom:3px;
  left:5px;
  right:5px;
  background:#202020;
  -moz-border-radius:3px;
  -webkit-border-radius:3px;
  border-radius:3px;  
  -moz-transition-duration:.4s;
  -moz-transition-delay:.05s;
  -webkit-transition-duration:.4s;
  -webkit-transition-delay:.05s;
  -o-transition-duration:.4s;
  -o-transition-delay:.05s;			
  transition-duration:.4s;
  transition-delay:.05s;
}

a:hover:after,a:focus:after{
  background:#4EE1FC;
  -moz-box-shadow:0 -1px 4px rgba(78,225,252,.7);
  -webkit-box-shadow:0 -1px 4px rgba(78,225,252,.7);
  box-shadow:0 -1px 4px rgba(78,225,252,.7);
}