body{
    background-color: black;
    margin: 0px auto;
}
a{
    text-decoration: none;
    color: navy;
    font-size: 20px;
    width: 100px;
    height: 50px;
    background-color: white;
    margin-left: 5px;
    border: 3px solid navy;
    font-style: italic;
    font-weight: bolder;
    margin-bottom: 10px;
}