纯CSS三级弹出菜单
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纯CSS三级弹出菜单
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以前收藏的代碼，貼出來分享下.兼容IE\FF.
CSS:
/**//*?common?styling?*/
.menu?{}{font-family:?arial,?sans-serif;?width:750px;?position:relative;?margin:0;?font-size:11px;?margin:50px?0;}
.menu?ul?li?a,?.menu?ul?li?a:visited?{}{display:block;?text-decoration:none;?color:#000;width:104px;?height:20px;?text-align:center;?color:#fff;?border:1px?solid?#fff;?background:#710069;?line-height:20px;?font-size:11px;?overflow:hidden;}
.menu?ul?{}{padding:0;?margin:0;list-style-type:?none;?}
.menu?ul?li?{}{float:left;?margin-right:1px;?position:relative;}
.menu?ul?li?ul?{}{display:?none;}
/**//*?specific?to?non?IE?browsers?*/
.menu?ul?li:hover?a?{}{color:#fff;?background:#36f;}
.menu?ul?li:hover?ul?{}{display:block;?position:absolute;?top:21px;?left:0;?width:105px;}
.menu?ul?li:hover?ul?li?a.hide?{}{background:#6a3;?color:#fff;}
.menu?ul?li:hover?ul?li:hover?a.hide?{}{background:#6fc;?color:#000;}
.menu?ul?li:hover?ul?li?ul?{}{display:?none;}
.menu?ul?li:hover?ul?li?a?{}{display:block;?background:#ddd;?color:#000;}
.menu?ul?li:hover?ul?li?a:hover?{}{background:#6fc;?color:#000;}
.menu?ul?li:hover?ul?li:hover?ul?{}{display:block;?position:absolute;?left:105px;?top:0;}
.menu?ul?li:hover?ul?li:hover?ul.left?{}{left:-105px;}
</style>
<!--[if?lte?IE?6]>
<style?type="text/css">
.menu?ul?li?a.hide,?.menu?ul?li?a:visited.hide?{}{display:none;}
.menu?ul?li?a:hover?ul?li?a.hide?{}{display:none;}
.menu?ul?li?a:hover?{}{color:#fff;?background:#36f;}
.menu?ul?li?a:hover?ul?{}{display:block;?position:absolute;?top:21px;?left:0;?width:105px;}
.menu?ul?li?a:hover?ul?li?a.sub?{}{background:#6a3;?color:#fff;}
.menu?ul?li?a:hover?ul?li?a?{}{display:block;?background:#ddd;?color:#000;}
.menu?ul?li?a:hover?ul?li?a?ul?{}{visibility:hidden;}
.menu?ul?li?a:hover?ul?li?a:hover?{}{background:#6fc;?color:#000;}
.menu?ul?li?a:hover?ul?li?a:hover?ul?{}{visibility:visible;?position:absolute;?left:105px;?top:0;?color:#000;}
.menu?ul?li?a:hover?ul?li?a:hover?ul.left?{}{left:-105px;}
</style>
<![endif]-->
演示效果:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>三級dropdown彈出菜單</title> <style type="text/css"> /* common styling */ .menu {font-family: arial, sans-serif; width:750px; position:relative; margin:0; font-size:11px; margin:50px 0;} .menu ul li a, .menu ul li a:visited {display:block; text-decoration:none; color:#000;width:104px; height:20px; text-align:center; color:#fff; border:1px solid #fff; background:#710069; line-height:20px; font-size:11px; overflow:hidden;} .menu ul {padding:0; margin:0;list-style-type: none; } .menu ul li {float:left; margin-right:1px; position:relative;} .menu ul li ul {display: none;} /* specific to non IE browsers */ .menu ul li:hover a {color:#fff; background:#36f;} .menu ul li:hover ul {display:block; position:absolute; top:21px; left:0; width:105px;} .menu ul li:hover ul li a.hide {background:#6a3; color:#fff;} .menu ul li:hover ul li:hover a.hide {background:#6fc; color:#000;} .menu ul li:hover ul li ul {display: none;} .menu ul li:hover ul li a {display:block; background:#ddd; color:#000;} .menu ul li:hover ul li a:hover {background:#6fc; color:#000;} .menu ul li:hover ul li:hover ul {display:block; position:absolute; left:105px; top:0;} .menu ul li:hover ul li:hover ul.left {left:-105px;} </style> </head> <body> <div class="menu"> <ul> <li><a class="hide" href="../menu/index.html">DEMOS</a> <ul> <li><a href="../menu/zero_dollars.html" title="The zero dollar ads page">zero dollars</a></li> <li><a href="../menu/embed.html" title="Wrapping text around images">wrapping text</a></li> <li><a href="../menu/form.html" title="Styling forms">styled form</a></li> <li><a href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li> <li><a class="hide" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">HOVER/CLICK ></a> <ul> <li><a href="../menu/form.html" title="Styling forms">styled form</a></li> <li><a href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li> <li><a href="../menu/hover_click.html" title="Hover/click with no active/focus borders">hover/click</a></li> </ul> </li> <li><a href="../menu/shadow_boxing.html" title="Multi-position drop shadow">shadow boxing</a></li> <li><a href="../menu/old_master.html" title="Image Map for detailed information">image map</a></li> <li><a href="../menu/bodies.html" title="fun with background images">fun backgrounds</a></li> <li><a href="../menu/fade_scroll.html" title="fade-out scrolling">fade scrolling</a></li> <li><a href="../menu/em_images.html" title="em size images compared">em sized images</a></li> </ul> </li> <li><a class="hide" href="index.html">MENUS</a> <ul> <li><a href="spies.html" title="a coded list of spies">spies menu</a></li> <li><a href="vertical.html" title="a horizontal vertical menu">vertical menu</a></li> <li><a href="expand.html" title="an enlarging unordered list">enlarging list</a></li> <li><a href="enlarge.html" title="an unordered list with link images">link images</a></li> <li><a href="cross.html" title="non-rectangular links">non-rectangular</a></li> <li><a href="jigsaw.html" title="jigsaw links">jigsaw links</a></li> <li><a href="circles.html" title="circular links">circular links</a></li> </ul> </li> <li><a class="hide" href="../layouts/index.html">LAYOUTS</a> <ul> <li><a href="../layouts/bodyfix.html" title="Cross browser fixed layout">Fixed 1</a></li> <li><a href="../layouts/body2.html" title="Cross browser fixed layout">Fixed 2</a></li> <li><a href="../layouts/body4.html" title="Cross browser fixed layout">Fixed 3</a></li> <li><a href="../layouts/body5.html" title="Cross browser fixed layout">Fixed 4</a></li> <li><a href="../layouts/minimum.html" title="A simple minimum width layout">minimum width</a></li> </ul> </li> <li><a class="hide" href="../boxes/index.html">BOXES</a> <ul> <li><a href="spies.html" title="a coded list of spies">spies menu</a></li> <li><a href="vertical.html" title="a horizontal vertical menu">vertical menu</a></li> <li><a href="expand.html" title="an enlarging unordered list">enlarging list</a></li> <li><a href="enlarge.html" title="an unordered list with link images">link images</a></li> <li><a href="cross.html" title="non-rectangular links">non-rectangular</a></li> <li><a href="jigsaw.html" title="jigsaw links">jigsaw links</a></li> <li><a href="circles.html" title="circular links">circular links</a></li> </ul> </li> <li><a class="hide" href="../mozilla/index.html">MOZILLA</a> <ul> <li><a href="../mozilla/dropdown.html" title="A drop down menu">drop down menu</a></li> <li><a href="../mozilla/cascade.html" title="A cascading menu">cascading menu</a></li> <li><a href="../mozilla/content.html" title="Using content:">content:</a></li> <li><a href="../mozilla/moxbox.html" title=":hover applied to a div">mozzie box</a></li> <li><a href="../mozilla/rainbow.html" title="I can build a rainbow">rainbow box</a></li> <li><a href="../mozilla/snooker.html" title="Snooker cue">snooker cue</a></li> <li><a href="../mozilla/target.html" title="Target Practise">target practise</a></li> <li><a href="../mozilla/splittext.html" title="Two tone headings">two tone headings</a></li> <li><a href="../mozilla/shadow_text.html" title="Shadow text">shadow text</a></li> </ul> </li> <li><a class="hide" href="../ie/index.html">EXPLORER</a> <ul> <li><a href="../ie/exampleone.html" title="Example one">example one</a></li> <li><a href="../ie/weft.html" title="Weft fonts">weft fonts</a></li> <li><a href="../ie/exampletwo.html" title="Vertical align">vertical align</a></li> </ul> </li> <li><a class="hide" href="../opacity/index.html">OPACITY</a> <ul> <li><a href="../opacity/colours.html" title="colour wheel">opaque colours</a></li> <li><a href="../opacity/picturemenu.html" title="a menu using opacity">opaque menu</a></li> <li><a href="../opacity/png.html" title="partial opacity">partial opacity</a></li> <li><a href="../opacity/png2.html" title="partial opacity II">partial opacity II</a></li> <li><a class="hide" href="../menu/hover_click.html" title="Hover/click with no active/focus borders">< HOVER/CLICK</a> <ul class="left"> <li><a href="../menu/form.html" title="Styling forms">styled form</a></li> <li><a href="../menu/nodots.html" title="Removing active/focus borders">active focus</a></li> <li><a href="../menu/hover_click.html" title="Hover/click with no active/focus borders">hover/click</a></li> </ul> </li> </ul> </li> </ul> </div> </body> </html> 提示：可以先在文本框內，根據需要修改代碼后再運行轉載于:https://www.cnblogs.com/joe235/archive/2008/04/15/1154409.html
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