#gc-bf-banner{
 position:fixed;bottom:20px;left:20px;z-index:99999;
}
#gc-bf-banner img{width:260px;border-radius:10px;cursor:pointer;}
#gc-bf-close{position:absolute;top:-10px;right:-10px;background:#000;color:#fff;
 width:24px;height:24px;border-radius:50%;display:flex;align-items:center;
 justify-content:center;cursor:pointer;font-size:18px;}