#main {
    text-align: center;
    width: 95%;
    margin: 10px auto;
}

#top_menu {
    margin-top : 50px;

}

#top_menu li {
    display: block;
    float: left;
    width: 150px;
}

li {
    margin-left: 10px;
}

#footer {
    text-align: center;
    
}

a {
    color: #4F4F4F;
    text-decoration: none;
}

a:hover {
    color: #888888;
    text-decoration: none;
}