@media screen and (max-width: 1000px) {
	.menu_content, .main_content{
		width:720px;
	}
	/*.stat{margin-left:170px;}
	.stat_content{width:550px;}*/
}
@media screen and (max-width: 720px) {
	.menu_content, .main_content{
		width:460px;
		margin-top:5px;
	}
	.menu_left{
		float:none;
		margin: 0 auto;
		width:186px;
	}
	.mcq_cont, .fib_cont{
		float:none;
		/*margin:20px auto 0;*/
	}
	#navigation {font-size:11px;}
	.stat{margin-left:0px;}
	/*.stat_content{width:400px;}*/
}
@media screen and (max-width: 480px) {
	.menu_content, .main_content{
		width:315px;
		margin-top:5px;
	}
	.menu_left{
		float:none;
		margin: 0 auto;
		width:186px;
	}
	.mcq_cont, .fib_cont{
		float:none;
		margin:20px auto 0;
		width:315px;
	}
	#navigation {font-size:9px;width:315px;margin: 18px auto;}
	#navigation a {
	padding: 4px 4px;
	}
	/*.stat_content{width:315px;}*/
}