#external_control {
	position: absolute;
left: 0;
bottom: 80px;
z-index: 1000;
opacity: .4;
background: #fff;
}
#external_control:hover {
	opacity: 1;
}


#scale-line {
	border-top-style: none;
  border-right-style: none;
  border-bottom-style: solid;
  border-left-style: none;
		
	z-index: 1000;
	left: 50px;
	bottom: 30px;
	z-index: 1000;
	position: absolute;

}

#time {
	left: 50px;
	top: 130px;
	z-index: 1000;
	position: absolute;

}