.infoUser div #signupUser{width: 98%;float: left;margin: 4px;} 
@media only screen and (min-width: 768px) {
.infoUser{width: 600px; }
.infoUser div input{width: 48%;float: left;margin: 4px;}
.infoUser div #wilaya_user{width: 48%;float: left;margin: 3px;}
.infoUser div #adresse_user{ width:97%;}

}