#banner{width:100%;max-width:650px;min-width:300px;position:relative;float:left;padding-bottom:80px}#banner img{position:absolute;top:0;left:0;width:100%;margin:0;padding:0;border:none;display:block;-webkit-transition-duration:0.25s;transition-duration:0.25s}#banner img:last-child:hover{opacity:0;-webkit-border-radius:0 40px 40px 0;border-radius:0 40px 40px 0}.img1{-webkit-border-radius:5px;border-radius:5px}.img2{-webkit-border-radius:0 40px 40px 0;border-radius:0 40px 40px 0;cursor:pointer}