如何使Ul-LI菜单变得灵活？

Question

当我们点击此菜单上的id项目时，它会覆盖一些底部菜单项。而不是我想要一个灵活的菜单，这意味着放置项目不会涵盖任何其他。

＆＃13;

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#demo {
  margin: 30px 0 50px 0;
  font-family:  sans-serif;
}
#demo .wrapper {
  display: inline-block;
  width: 180px;
  height: 20px;
  position: absolute;
}
#demo .parent {
  height: 100%;
  width: 100%;
  display: block;
  cursor: pointer;
  height: 150%;
  background: #023b3b;
  color: white;
  z-index: 2;
  position: relative;
  text-align: center;
}
#demo .parent:hover,
#demo .content:hover ~ .parent {
  background: #122112;
}
#demo .content:hover ~ .parent {
  z-index: 0;
}
#demo .content {
  position: absolute;
  top: 0;
  display: block;
  z-index: 1;
  height: 0;
  width: 180px;
  padding-top: 30px;
}
#demo .wrapper:active .content {
  height: 100px;
  z-index: 3;
}
#demo .content:hover {
  height: 123px;
  z-index: 3;
}
#demo .content ul {
  background: #339933;
  margin: 0;
  padding: 0;
  overflow: hidden;
  height: 100%;
}
#demo .content ul a {
  text-decoration: none;
}
#demo .content li:hover {
  background: #122112;
  color: white;
}
#demo .content li {
  list-style: none;
  text-align: left;
  color: white;
  font-size: 14px;
  line-height: 30px;
  height: 30px;
  padding-left: 10px;
}

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<div id="demo">
      <div class="wrapper">
        <div class="parent">Dashboard</div>
      </div><br> <br>  
      <div class="wrapper">
        <div class="parent">Apps</div>
        <div class="content">
          <ul>
            <a href="#"><li>Inbox</li></a>
            <a href="#"><li>Condact</li></a>
            <a href="#"><li>Calender</li></a>
            <a href="#"><li>Other</li></a>
          </ul>
        </div>

      </div><br><br>

      <div class="wrapper">
        <div class="parent">Layouts</div>
        <div class="content">
          <ul>
            <a href="#"><li>Header</li></a>
            <a href="#"><li>Aside</li></a>
            <a href="#"><li>Footer</li></a>
            <a href="#"><li>Other</li></a>
          </ul>
        </div>

      </div><br><br>
      <div class="wrapper">
        <div class="parent">Widjet</div>
      </div>
    </div>

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Answer 1

检查这是否对您有所帮助。我添加了input和label。

#first {
  float:left;
  width:15%;
  color :bisque; 
  border-color: #023b3b;
  border-style : solid;
  height: 100%;
  background-color :#023b3b;
}

#boa{
  height: 5%;
  width: 20%;
  float: left;
}

.bob{
  text-indent: 200%;
  line-height: 210%;
  font-size: 150%;
  font-family: sans-serif;
  color: white;
  font-weight: bold;
}
.boc{
  text-indent: 4%;
  color : white;
  font-size: 83%;
  font-family: sans-serif;
  font-weight: normal;
}
.bod{
  color:white;
  font-size: 100%;
  font-family: sans-serif;
  line-height: 200%;
  list-style-type: none;
}
#demo {
  margin: 30px 0 50px 0;
  font-family:  sans-serif;
}
#demo .wrapper {
  display: inline-block;
  width: 180px;
}
#demo .parent {
  padding: 5px;
  display: block;
  cursor: pointer;
  background: #023b3b;
  color: white;
  position: relative;
  text-align: center;
}
#demo .parent:hover,
#demo .content:hover ~ .parent {
  background: #122112;
}
#demo .content:hover ~ .parent {
  z-index: 0;
}
#demo .content {
  height: 0px;
  transition: height 0.3s;
  z-index: 1;
  width: 180px;
}
#demo .wrapper input[type=radio] {
  position: absolute;
  opacity: 0
}
#demo .wrapper:hover input[type=radio]:checked + .content {
  height: 120px;
}
#demo .content:hover {
  height: 123px;
  z-index: 3;
}
#demo .content ul {
  background: #339933;
  margin: 0;
  padding: 0;
  overflow: hidden;
  height: 100%;
}
#demo .content ul a {
  text-decoration: none;
}
#demo .content li:hover {
  background: #122112;
  color: white;
}
#demo .content li {
  list-style: none;
  text-align: left;
  color: white;
  font-size: 14px;
  line-height: 30px;
  height: 30px;
  padding-left: 10px;
}

 <div id="first" style="float:left; lngth:60%; ">
    <p><img src="image1.jpg"  id="boa"><span class="bob">First</span></p>
    <p class="boc" >Main</p>
    <div id="demo">
      <div class="wrapper">
        <div class="parent">Dashboard</div>
      </div><br> <br>  
      <div class="wrapper">
        <label for="apps"  class="parent">Apps</label>
        <input type="radio" name="menu" id="apps" />
        <div class="content">
          <ul>
            <a href="#"><li>Inbox</li></a>
            <a href="#"><li>Condact</li></a>
            <a href="#"><li>Calender</li></a>
            <a href="#"><li>Other</li></a>
          </ul>
        </div>

      </div><br><br>

      <div class="wrapper">
        <label for="layouts" class="parent">Layouts</label>
        <input type="radio" name="menu" id="layouts" />
        <div class="content">
          <ul>
            <a href="#"><li>Header</li></a>
            <a href="#"><li>Aside</li></a>
            <a href="#"><li>Footer</li></a>
            <a href="#"><li>Other</li></a>
          </ul>
        </div>

      </div><br><br>
      <div class="wrapper">
        <div class="parent">Widjet</div>
      </div>
    </div>

    <p class="boc">Componets</p>

    <p class="boc">Help</p>
    <p class="bod">&nbsp; Documents</p>
  </div>

Answer 2

您在jquery中添加代码：

   $("#demo").hide();
     $(".boc").click(function(){
     $("#demo").slideToggle();
   });