.logo_bgc {
    position: absolute;
    background: #ffffff;
    filter: alpha(opacity:50);
    opacity: 0.5;
    -moz-opacity: 0.5;
    -khtml-opacity: 0.5;
    width: 213px;
    height: 50px;
}

.f_logo {
    z-index: 100;
    position: absolute;
    width: 210px;
}

.logo_bgc ,.f_logo {

}