.folio_vignettes {
float: left; 
width: 53px;
height: 55px;
border: #6a6a6a 1px solid;
margin: 3px 3px 0px 0px;
}

.folio_vignettes_opac {
float: left; 
width: 53px;
height: 55px;
border: #6a6a6a 1px solid;
margin: 3px 3px 0px 0px;
opacity: 0.4;
filter: alpha(opacity=40);
}

.folio_vignettes_opac:hover{
float: left; 
width: 53px;
height: 55px;
border: #6a6a6a 1px solid;
margin: 3px 3px 0px 0px;
opacity: 0.7;
filter: alpha(opacity=70);
}

.folio_vignettes_vide {
float: left; 
width: 40px;
height: 27px;
margin: 3px 3px 0px 0px;
opacity: 0;
filter: alpha(opacity=0);
}