#noVNC-control-bar { background-color:#000; background-image: -webkit-gradient( linear, left bottom, left top, color-stop(0.5, rgb(0,0,0)), color-stop(0.5, rgb(20,20,20)) ); background-image: -moz-linear-gradient( center bottom, rgb(0,0,0) 50%, rgb(20,20,20) 50% ); } .triangle-right { border:2px solid #fff; background:#000; color:#fff; }