.ly_main{ clear:both; width:1200px; min-width:320px; line-height:30px; margin:0 auto; border:1px #ddd solid; position:relative;}
	.ly_title{ clear:both; width:100%; height:50px; line-height:50px; font-size:1.14em; font-weight:bold; text-align:center; background-color:#eee; overflow:hidden;}
	
	.ly_item{ clear:both; width:90%; margin:0 auto; text-align:left; border-bottom:1px #ddd dotted; overflow:hidden; display:table; position:relative;}
		.ly_item_L{ float:left; width:50%; padding:15px 0;}
		.ly_item_R{ float:right; width:50%; padding:15px 0;}
			.input{ width:200px; padding:0 10px; box-sizing:border-box; outline:none;}
	.ly_button{ clear:both; width:90%; margin:0 auto; padding:15px 0; text-align:center; border-bottom:1px #ddd dotted; overflow:hidden;}
	.ly_help{ clear:both; width:90%; margin:0 auto; padding:15px 0; text-align:left; overflow:hidden;}

@media screen and (min-width:769px) and (max-width:1219px){
	.ly_main{  width:96vw;}
	.ly_item{ width:96%;}
	.ly_button{ width:96%;}
	.ly_help{ width:96%;}
}
@media screen and (min-width:0px) and (max-width:768px){
	.ly_main{  width:96vw;}
	.ly_item{ width:96%;}
		.ly_item_L{ width:100%;}
		.ly_item_R{ width:100%;}
	.ly_button{ width:96%;}
	.ly_help{ width:96%;}
}