spark-student/static/css/themes.scss

$mainColor: #ff6e3e;
$pageBgColor: #f7f7f7;

.handle-fix-box {
	width: 100%;
	height: 60px;
	padding: 10px 15px;
	position: fixed;
	z-index: 2;
	bottom: 0px;
	left: 0px;
	background-color: #FFFFFF;
	box-sizing: border-box;
}