body {
background-color:#000000;
}

A.rollover_enter {
display:block;
height:29px;
width:168px;
     background: url(img/index_enter.gif);
     border: 0;
}

A.rollover_enter:hover {
     background: url(img/index_enter2.gif);
}

A.rollover_entrer {
display:block;
height:30px;
width:206px;
     background: url(img/index_entrer.gif);
     border: 0;
}

A.rollover_entrer:hover {
     background: url(img/index_entrer2.gif);
}