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JS實(shí)現(xiàn)下拉菜單列表與登錄注冊彈窗效果

 更新時間:2017年08月10日 07:51:50   投稿:jingxian  
下面小編就為大家?guī)硪黄狫S實(shí)現(xiàn)下拉菜單列表與登錄注冊彈窗效果。小編覺得挺不錯的,現(xiàn)在就分享給大家,也給大家做個參考。一起跟隨小編過來看看吧

下拉菜單列表

<style>
    *{
      margin: 0px;
      padding: 0px;
    }
    .menu{
      width: 1100px;
      height: 30px;
      background-image: url(img/魅力羅蘭Music炫圖18.jpg);
      margin-left: 200px;
      margin-top: 50px;
    }
    .btn{
      width: 183.3px;
      height: 30px;
      float: left;
      text-align: center;
      line-height: 30px;
      font-size: 14px;
      position: relative;
      overflow: hidden;
      transition: 0.5s;
    }
    .btn:hover{
      cursor: pointer;
      background-color: burlywood;
      color: white;
      max-height: 200px;
      overflow: visible;
    }
    .btn ul{
      list-style: none;
      background-color: #008000;
    }
    
  </style>
  
  <body>
    <div class="menu">
      <div class="btn">羅蘭首頁</div>
      <div class="btn">歌曲專欄
        <ul>
          <li>流行</li>
          <li>搖滾</li>
          <li>藍(lán)調(diào)</li>
          <li>民謠</li>
        </ul>
      </div>
      <div class="btn">音樂人專欄
        <ul>
          <li>內(nèi)地</li>
          <li>歐美</li>
          <li>日韓</li>
          <li>港臺</li>
        </ul>
      </div>
      <div class="btn">樂器專欄
        <ul>
          <li>鋼琴</li>
          <li>小提琴</li>
          <li>吉他</li>
          <li>架子鼓</li>
        </ul>
      </div>
      <div class="btn">戲曲專欄
        <ul>
          <li>京劇</li>
          <li>話劇</li>
          <li>豫劇</li>
          <li>黃梅戲</li>
        </ul>
      </div>
      <div class="btn">魅力ROLAND體驗區(qū)
        <ul>
          <li>新曲</li>
          <li>唱片</li>
          <li>MV</li>
        </ul>
      </div>
    </div>
    
  </body>

登錄注冊彈窗效果

<html>

  <head>
    <meta charset="UTF-8">
    <title></title>
    <style>
      * {
        margin: 0px;
        padding: 0px;
      }
      
      .login {
        width: 100px;
        height: 30px;
        font-size: 25px;
        line-height: 30px;
        border: 1px solid black;
        text-align: center;
        background-color: darkcyan;
        color: white;
      }
      
      .login:hover {
        cursor: pointer;
        background-color: greenyellow;
      }
      
      .mask {
        width: 100%;
        background-color: black;
        opacity: 0.5;
        position: absolute;
        top: 0px;
        left: 0px;
        z-index: 90;
      }
      
      .log-div {
        width: 500px;
        height: 300px;
        background-color: white;
        position: fixed;
        z-index: 99;
      }
    </style>
  </head>

  <body>
    <div class="mask" hidden></div>
    <div class="log-div" hidden="hidden"></div>
    <div class="login">登 錄</div>
    <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p>
    <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p>
    <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p>
    <p>123</p><p>123</p><p>123</p><p>123</p><p>123</p><p>123</p>


  </body>

</html>

<script>
  var mask = document.getElementsByClassName("mask")[0];
  var login = document.getElementsByClassName("log-div")[0];
  var btn = document.getElementsByClassName("login")[0];

  var clientWidth = document.body.clientWidth;
  var clientHeight = document.documentElement.clientHeight;

  login.style.left = clientWidth / 2 - 250 + "px";
  login.style.top = clientHeight / 2 - 150 + "px";
  
  mask.style.height = document.body.clientHeight + "px";

  window.onresize = function() {
    var clientWidth = document.body.clientWidth;
    var clientHeight = document.documentElement.clientHeight;

    login.style.left = clientWidth / 2 - 250 + "px";
    login.style.top = clientHeight / 2 - 150 + "px";
  }
  
  btn.onclick = function(){
    mask.removeAttribute("hidden");
    login.removeAttribute("hidden");
  }
  
  mask.onclick = function(){
    mask.setAttribute("hidden","");
    login.setAttribute("hidden","hidden");
  }
</script>

以上這篇JS實(shí)現(xiàn)下拉菜單列表與登錄注冊彈窗效果就是小編分享給大家的全部內(nèi)容了,希望能給大家一個參考,也希望大家多多支持腳本之家。

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