jQuery实现居于左侧的弹出菜单
.box-163css{ position:absolute; left:0; top:220px; background:#f5f5f5; line-height:117px;}
#box{ width:0; overflow:hidden; float:left;}
.btn1{ display:block; border:none; cursor:pointer; float:left; background:url(../images/slide-button-active.gif) no-repeat; width:43px; height:117
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