* {
    margin: 0;
    padding: 0;
    border: 0;
}
ul {
    list-style:none; 
    }
    ul li {
    float: left; 
    }
    li ul {
    display: none; 
    }
    ul li a {
    text-decoration: none; 
    color: white; 
    margin-left: 1px;
    padding: 5px 15px 5px 15px; 
    background: orangered; 
   
    }
    ul li a:hover {
    background:blue; 
    }
    li:hover ul {
    display: block; 
    position: absolute; 
    }
    li:hover li {
    margin-top: 10px; 
    float: none; 
    }