html, body {
	margin: 0; 
	padding: 0; 
}

.wrapper {
	position: relative; 
	max-width: 540px;
	margin: 0 auto; 
	height: 100vh; 
	overflow: hidden; 
}

.wrapper canvas {
	display: block; 
	width: 100%; 
	height: auto; 
}

.levels {
	position: absolute; 
	width: 100%; 
	height: 100vh; 
	top: 0;
	left: 0; 
	list-style: none; 
	padding: 0; 
	margin: 0;
	overflow-x: hidden;
	overflow-y: auto; 
	-webkit-overflow-scrolling:touch; 
	transition: transform .6s ease; 
}

.level { 
	position: relative; 
	width: 100%; 
	height: 60px; 
	box-sizing: border-box; 
	padding: 20px 10px 0; 
	display: flex; 
	align-items: center; 
	box-align: center; 
}

.level::after {
	content: ''; 
	position: absolute; 
	right: 0;
	bottom: 0; 
	left: 70px; 
	height: 1px; 
	background-color: #ccc; 
}

.level-no {
	width: 50px; 
	height: 40px; 
	line-height: 40px; 
	text-align: center; 
	color: #fff; 
	background-color: #e11222;
}

.level-arrow {
	width: 10px; 
	height: 10px; 
	border-width: 2px 2px 0 0; 
	border-style: solid; 
	border-color: #ccc; 
	margin: 0 10px; 
	transform: rotate(45deg);
}

.level-name {
	flex: 1; 
	margin-left: 10px;
}

.game {
	position: absolute; 
	top: 0; 
	left: 100%; 
	width: 100%; 
	height: 100vh; 
	overflow: hidden; 
	transition: transform .6s ease; 
}

.game-back {
	position: absolute; 
	z-index: 1; 
	top: 0; 
	left: 0; 
	width: 100%; 
	height: 40px; 
	line-height: 40px; 
	text-align: center; 
	background-color: #efefef; 
	box-shadow: 0 0px 10px rgba(0, 0, 0, .2); 
}

.game-back::before {
	content: ''; 
	position: absolute; 
	width: 100%; 
	height: 1px; 
	background-color: #ccc; 
	bottom: 0; 
	left: 0; 
}

.game-back::after {
	content: ''; 
	position: absolute; 
	width: 10px; 
	height: 10px; 
	border-width: 2px 0 0 2px; 
	border-style: solid; 
	border-color: #ccc; 
	top: 12px; 
	left: 10px; 
	transform: rotate(315deg);
}

.easel {
	position: relative; 
	width: 100%; 
}
.game-control {
	position: absolute; 
	z-index: 1; 
	bottom: 0; 
	left: 0; 
	width: 100%; 
	height: 40px; 
	line-height: 40px; 
	text-align: center; 
	background-color: #efefef; 
	box-shadow: 0 0px 10px rgba(0, 0, 0, .2); 
	display: flex; 
}

.game-control-reset, .game-control-rollback {
	flex: 1; 
}

.game-control-rollback
{
	color: #e11222; 
}