@charset "utf-8";
#tb{
	display:block;
	width:auto;
	height:auto;
	margin:auto;
	overflow:hidden;
	font-size:0px;
}
.tb_item{
	width:25%;
	height:auto;
	overflow:hidden;
	margin:auto;
	overflow:hidden;
	display:inline-block;
	vertical-align:top;
	cursor:pointer;
	text-align:center;
	transition:all 0.4s;
}
@media (max-width:1000px){.tb_item{width:33.3%;}}
@media (max-width:480px){.tb_item{width:50%;}}
@media (max-width:280px){.tb_item{width:100%;}}
.tb_tb{
	width:auto;
	height:260px;
	overflow:hidden;
	display:block;
	margin:5px;
	background-color:#fff;
	border:1px solid #ddd;
	transition:all 0.4s;
}
.tb_tb:hover{
	background-color:#efefef;
	transition:all 0.4s;
}

a.tb_pic{
	width:auto;
	height:200px;
	overflow:hidden;
	display:block;
	margin:auto;
	position:relative;
}
a.tb_name{
	width:auto;
	height:auto;
	display:block;
	margin:auto;
	overflow:hidden;
	text-align:center;
	padding:5px;
	font-size:14px;
}