5款纯div+css制作的弹出菜单(标准且无js)

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   <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>
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  <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>
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  <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>
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  <li><a href="../layouts/bodyfix.html" title="Cross browser fixed layout">Fixed 1</a></li>