#nav{display:none}.parent{background-color:#f8f8f8}div#catalog>ul>li.parent{border-bottom:1px solid #e7e7e7}.tree ul li ul{display:none;margin:0 0 0 15px}.tree a{text-decoration:blink;color:#333}.tree ul li.active>span:before{background-position:0 center}.slideColor{background-color:#f2f2f2}.catalogSpan{margin-right:0;vertical-align:text-bottom}.fileSpan{margin-right:14px;vertical-align:text-bottom}.big-pic-open{width:18px;height:18px;display:inline-block;background:url('/assets/f0abe2e078962f10.png') no-repeat}.big-pic-close{width:18px;height:18px;display:inline-block;background:url('/assets/ce42018c77002a4c.png') no-repeat}.small-pic-open{width:12px;height:12px;display:inline-block;vertical-align:baseline;background:url('/assets/08fa9bb0c005c5fa.png') no-repeat}.small-pic-close{width:12px;height:12px;display:inline-block;vertical-align:baseline;background:url('/assets/ce008afd409e33b0.png') no-repeat}.levelTitle0 a{margin:0 0 0 7px}.subLevelTitle{margin:5px 0}