* {margin:0; padding:0; outline:none; position:relative;}
html, body {background:#434A54; font-size:0;}
body {padding:5px;}

.track {max-width:280px; margin:10px; height:15px; background-color:#f00;}
.track.h {background:url(hue.png) center center no-repeat; background-size:cover;}
.track.l:before {content:''; position:absolute; top:0; left:0; right:0; bottom:0; background:url(lightness.png) center center no-repeat; background-size:cover;}

.cur {
	-moz-user-select: none;
    -khtml-user-select: none;
    user-select: none;
    
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: rgba(0,0,0,0);
    -webkit-text-size-adjust: none; 

	/*width:0; height:0;
	border-left:16px solid transparent;
	cursor:pointer;
	border-right:16px solid transparent;
	border-bottom:16px solid #fff;
	position:absolute!important;
	left:0%; bottom:0px!important;
	margin:-8px -16px -8px -16px;*/

	width:12px; height:12px;
	border:3px solid #fff;
	border-radius:9px;
	margin:2px 9px 2px -9px;
	top:-1px;
}