#conteneur_liens {
float:left;
width:240px;
height : 350px;
font-family:century gothic, Verdana, Arial, Helvetica, sans-serif; 
font-size : 14px;
color:#979A28;/*FONCE*/
text-align:justify;
background:orange;
margin: 10px 0px 0px 0px;
}
#colonne_liens_1 {
float:left;
width:330px;
height : 350px;
background:red;
margin: 10px 0px 0px 0px;
}
#colonne_liens_2 {
float:right;
width:330px;
height : 350px;
background:green;
margin: 10px 0px 0px 0px;
}