ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;

}

li {
   	float: right;
    margin-left: 0px;
 
}

li a {
    display: block;
    width: 80px;
    text-align: center;
    padding: 4px;
    text-decoration: none;
    text-transform: uppercase;
}

li a:hover {
   background-color: #ddff00;
}