.doc_selected {
    float:left;
    margin:5px;
    border:solid 1px #404040;
    text-align:left;
    background-color:#212121;
    font-size:80%;
}
    
.doc_masquer {
    float:left; 
    background-color:#F2F2F2;
    margin-right:10px;
    margin-bottom:10px;
    text-align:center;
    border: solid 1px #404040;
    visibility:hidden;
}
    
.doc {
    float:left;
    margin:5px;
    border:solid 1px #404040;
    text-align:left;
    font-size:80%;
    background-color:#2E2E2E;
}