*{margin:0;padding:0;list-style-type:none;}
a,img{border:0;}
a{text-decoration:none;color:#444;outline:none;}
body{font:12px/180% Arial, Helvetica, sans-serif, "新宋体";}

/* online */
.trigger_icon{overflow:hidden;}
.trigger_icon a{display:block;width:85px;height:148px;background:url(../Html/images/layer_trigger.png) no-repeat;font-size:16px;text-align:center;color:#000;}
.left_nav_content{width:144px;background-color:red;height:300px}



#left_nav_layer{position:fixed;left:-140px;top:80px;z-index:20;}
/**html,*html body{background-image:url(/static/css/about:blank);background-attachment:fixed}
*html #left_nav_layer{position:absolute;top:expression(eval(document.documentElement.scrollTop + 150));}*/

#nav_layer_trigger{float:left;margin-top:100px;}
#left_layer_content{float:left;margin-left:-4px;}