jquery插件实现堆叠式菜单

每天一个jquery插件-堆叠式菜单，供大家参考，具体内容如下

堆叠式菜单

一个多页面的特效

效果如下

代码部分

<!DOCTYPE html>
<html>
 <head>
  <meta charset="utf-8">
  <title>堆叠式菜单</title>
  <script src="js/jquery-3.4.1.min.js"></script>
  <style>
   * {
    margin: 0px;
    padding: 0px;
   }

   #boxs {
    position: fixed;
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    background-color: lightgray;
   }

   .box {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding-top: 10px;
    padding-left: 70px;
    font-weight: bold;
    color: white;
    transition: all 0.5s linear;
   }

   .box1 {
    background-color: #1abc9c;
    z-index: 1;
   }

   .box2 {
    background-color: #2ecc71;
    z-index: 2;
   }

   .box3 {
    background-color: #3498db;
    z-index: 3;
   }

   .box4 {
    background-color: #9b59b6;
    z-index: 4;
   }

   .box5 {
    background-color: #34495e;
    z-index: 5;
   }

   .box6 {
    background-color: #f1c40f;
    z-index: 6;
   }

   #btn {
    color: black;
    z-index: 9;
    position: fixed;
    width: 30px;
    height: 30px;
    /* background-color:lightgray; */
    top: 5px;
    left: 10px;
    font-size: 30px;
    cursor: pointer;
    transition: all 0.3s linear;
    display: flex;
    justify-content: center;
    align-items: center;
   }

   #btn:hover {
    color: white;
    font-weight: bold;
   }

   #btn.check {
    transform: rotate(135deg);
    color: white;
    font-weight: bold;
   }
   .box.check{
    z-index: 99;
   }
   .box span{
    cursor: pointer;
   }
  </style>
 </head>
 <body>
  <div id="btn">×</div>
  <div id="boxs">
   <div class="box box1" data-index="1"><span>页面1</span></div>
   <div class="box box2" data-index="2"><span>页面2</span></div>
   <div class="box box3" data-index="3"><span>页面3</span></div>
   <div class="box box4" data-index="4"><span>页面4</span></div>
   <div class="box box5" data-index="5"><span>页面5</span></div>
   <div class="box box6" data-index="6"><span>页面6</span></div>
  </div>
 </body>
</html>
<script>
 $(document).ready(function() {
  $("#btn").click(function() {
   $(this).toggleClass("check");
   if($(this).hasClass('check')){
    $(".box").removeClass('check');
    $(".box").arr().forEach(item=>{
     var index = parseInt(item.attr("data-index"));
     item.css({
      'top':40*index+'px',
      'left':40*index+'px'
     })
    })
   }else{
    $(".box").arr().forEach(item=>{
     var index = parseInt(item.attr("data-index"));
     item.css({
      'top':'0px',
      'left':'0px'
     })
    })
   }
  })


  $(".box span").click(function(){
   $(".box").parent().removeClass('check');
   $(this).parent().addClass('check');
   $("#btn").click();
  })
  $.prototype.arr = function() {
   var that = this;
   var arr = [];
   for (var i = 0; i < that.length; i++) {
    arr.push($(that[i]));
   }
   return arr;
  }
 })
</script>

思路解释

布局的效果，很容易理解

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编程技巧