.b_page{
    width: 980px;
    margin: 0 auto;
}
.b_page.larger{
    width: 1000px;
}
.b:before,.b:after{content:'\0020';display:block;overflow:hidden;visibility:hidden;width:0;height:0}.b:after{clear:both}.b{zoom:1}
.b{
    margin: 0 10px;
    float: left;
}
.b.full{
	margin: 0;
	padding:0 10px;
}
.b.w_980{
	width: 980px;
}
.b.w_960{
	width: 960px;
}
.b.w_940{
	width: 940px;
}
.b.w_860{
	width: 860px;
}
.b.w_780{
	width: 780px;
}
.b.w_700{
	width: 700px;
}
.b.w_620{
	width: 620px;
}
.b.w_540{
	width: 540px;
}
.b.w_460{
	width: 460px;
}
.b.w_380{
	width: 380px;
}
.b.w_300{
	width: 300px;
}
.b.w_220{
	width: 220px;
}
.b.w_140{
	width: 140px;
}
.b.w_60{
	width: 60px;
}