#sidebar-scroll-ad-container{
    float: left;
    position: relative;
    width: 310px;
    background: #fff;
}
#sidebar-scroll-300x250-container{
    position: relative;
    width: 300px;
    height: 250px;
    padding: 5px;
    background: whiteSmoke;
    float: left;
}
.disabled{
    display: none;
}
.fixed{
    position: fixed ;
    top: 0;
}