ul#Navigation {
    background-color: #555555;
    font-size: 12px;
    float: left; 
    width: 150px;
    margin: 0;
    padding: 0;
}

ul#Navigation li {
    background-color: #BBBBBB;
    text-align: center;
    list-style: none;
    margin: 5px; 
    padding: 0;
    border: 1px solid black;
}

ul#Navigation a {
    display: block;
    padding: 5px;
    font-weight: normal;
    font-style: normal;
    text-decoration: none;
}

ul#Navigation a:link {
    color: black;
}

ul#Navigation a:visited {
    color: black;
    border-color: black;
}
  
ul#Navigation a:hover {
    color: yellow; 
    background-color: #444444;
    border: 0px solid white;
}

ul#Navigation a:active {
    color: black; 
    background-color: #BBBBBB;
}