.site-content .content-sidebar-wrapper {background: none !important;}
.timbru {position: fixed;
    z-index: 1;
    left: 100px;
    top: 50px;
    width: 150px;}
    
@media screen and (max-width:768px){
        .timbru {    position: fixed;
    z-index: 10000;
    left: 0;
    top: 25%;
    width: 100px;}
        
    }
#masthead {
    background-color: rgba(179, 80, 0, 0.8);
    height: 80px;
}