.game-container {
	width: 800px;
	height: 600px;
	background-color: #000;
}

.player {
	width: 30px;
	height: 30px;
	background-color: #FFF;
	position: absolute;
}

.platforms {
	position: absolute;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
}

.platform {
	width: 100px;
	height: 20px;
	background-color: #666;
	margin: 10px;
	display: inline-block;
}