#div_menu_haut dl, dt, dd, ul, li {
margin: 0;
padding: 0;
list-style-type: none;
}

#div_menu_haut dl, dd {
float: left;
width: 130px;
}
#div_menu_haut dt {
cursor: pointer;
text-align: center;
background: #ccc;
border: 1px solid gray;
margin: 1px;
font-size : 16px;
}
#div_menu_haut dd {
display: none;
border: 1px solid gray;
position : absolute;
}
#div_menu_haut li {
text-align: center;
background: #fff;
}
#div_menu_haut li a, #div_menu_haut dt a {
color: #000;
text-decoration: none;
display: block;
height: 100%;
border: 0 none;
}

#div_menu_haut li a:hover, #div_menu_haut li a:focus, #div_menu_haut dt a:hover, #div_menu_haut dt a:focus {
background: #eee;
}