Question

用CSS做二级菜单为什么没有隐藏？

如图，二级菜单没有隐藏，要怎么改？急！！！

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Answer 1

<style>
#menu ul li ul {
   display:none
}
#menu ul li:hover ul {
   display:block
}
</style>
<div id="menu">
   <ul>
      <li>
         <a href="about.htm" target="_blank">About</a>
         <ul>
            <li>二级菜单1</li>
            <li>二级菜单2</li>
            <li>二级菜单3</li>
         </ul>
      </li>
      <li>
         <a href="pricing.htm" target="_blank">Pricing</a>
         <ul>
            <li>二级菜单4</li>
            <li>二级菜单5</li>
            <li>二级菜单6</li>
         </ul>
      </li>
      <li>
         <a href="contact.htm" target="_blank">Contact</a>
         <ul>
            <li>二级菜单7</li>
            <li>二级菜单8</li>
            <li>二级菜单9</li>
         </ul>
      </li>
   </ul>
</div>

Answer 2

么没有隐藏？

Answer 3

代码你得贴出来啊，这看连你DOM结构都看不出来