JS实现手风琴特效

时间:2020-11-08 花落(→)凋谢人气:0

效果图

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>手风琴</title>
  <link rel="stylesheet" href="index.css" rel="external nofollow" >
</head>

<body>
  <div class="wrapper">
    <ul class="wrapUl">
      <li>
        <div class="title">
          <h1>温泉酒店</h1>
        </div>
        <div class="picBox picBox1"></div>
        <div class="decration">有谁不爱泡温泉？浸入雾气蒸腾的泉水之中，把身体泡成一片茶叶，舒展轻盈。有比这更美妙的感觉吗？</div>
      </li>
      <li>
        <div class="title">
          <h1>时尚酒店</h1>
        </div>
        <div class="picBox picBox2"></div>
        <div class="decration">浪漫，是香闺围笼，是灯火迷离，泪眼婆裟的唯美，是杨柳岸、晓风残月中的无语凝噎……</div>
      </li>
      <li>
        <div class="title">
          <h1>设计师酒店</h1>
        </div>
        <div class="picBox picBox3"></div>
        <div class="decration">前卫的酒店设计理念，独具魅力的风格，优美的自然风光才能有这样顶级的酒店</div>
      </li>
      <li>
        <div class="title">
          <h1>青年旅店</h1>
        </div>
        <div class="picBox picBox4"></div>
        <div class="decration">我为你煮一杯温茶，斟一杯美酒。让我们席地而坐，听你的梦想。用你的只言片语装点我们的梦想博物馆</div>
      </li>
      <li>
        <div class="title">
          <h1>民宿客栈</h1>
        </div>
        <div class="picBox picBox5"></div>
        <div class="decration">在这里，你可以静静发呆，而不被人打扰；在这里，你能看见最美好的星星，能让你找到最深的感动</div>
      </li>
      <li>
        <div class="title">
          <h1>海岛酒店</h1>
        </div>
        <div class="picBox picBox6"></div>
        <div class="decration">不想过冬，厌倦沉重，就飞去热带的岛屿游泳，卸下包袱，放下压力，在这碧海蓝天之中</div>
      </li>
      <li>
        <div class="title">
          <h1>海外酒店</h1>
        </div>
        <div class="picBox picBox7"></div>
        <div class="decration">因地形地质的区别，世界各地的温泉也千差万别，选择一处适合自己的温泉，你会忘记世界</div>
      </li>
    </ul>
  </div>
  <script src="jquery.js"></script>
  <script src="index.js"></script>
</body>
</html>

JS代码

var oUl = $('ul'),
  oLi = $('li'),
  len = oLi.length,
  width = parseInt(oUl.css('width')),
  gw = width / len,
  ot = Math.floor((width - 400) / (len - 1));
  flag = true;
function init(){
  if(flag){
    change($(oLi[len-1]));    
  }
}
function bindEvent(){
  oLi.on('click',function(){
    change($(this));
    if(($(this).index() +1) == len){
      flag = false;
    }else{
      flag = true;      
    }
  });
  oUl.on('mouseleave',function(){
    init();
  })
}
function change(event){
  event.animate({
    'width':'400px'
  },300,'linear').siblings().animate({
    'width':ot + 'px'
  },300,'linear');
  event.find('.title').css({
    'display':'none'
  })
  event.siblings().find('.title').css({
    'display':'block'
  })
  event.find('.decration').css({
    'bottom':'0px'
  })
  event.siblings().find('.decration').css({
    'bottom':'-50px'
  })
}
init();
bindEvent();

CSS代码

*{
  margin:0;
  padding:0;
  list-style:none;
}
body{
  background-color:#333;
}
.wrapper{
  width:80%;
  margin:50px auto;
  padding:40px;
}
.wrapper ul{
  width:100%;
  height:300px;
  overflow: hidden;
}
.wrapper ul li{
  float: left;
  width:14.2;
  height:260px;
  position:relative;
  overflow:hidden;
  cursor:pointer;  
}
.picBox{
  width:100%;
  height:100%;
}
.picBox1{
  background:url(images/1.jpg) no-repeat center 0;
}
.picBox2{
  background:url(images/2.jpg) no-repeat center 0;
}
.picBox3{
  background:url(images/3.jpg) no-repeat center 0;
}
.picBox4{
  background:url(images/4.jpg) no-repeat center 0;
}
.picBox5{
  background:url(images/5.jpg) no-repeat center 0;
}
.picBox6{
  background:url(images/6.jpg) no-repeat center 0;
}
.picBox7{
  background:url(images/7.jpg) no-repeat center 0;
}
.wrapper ul li .title{
  position:absolute;
  overflow:hidden;
  width:100%;
  height:100%;
  left:0;
  top:0;
  background:rgba(0,0,0,0.5);
}
.wrapper ul li .title h1{
  color:#fff;
  width:30px;
  margin:0 auto;
  display:block;
  font:20px;
  padding-top:30px;
  opacity:0.8;
}
.wrapper ul li .decration{
  width:400px;
  height:40px;
  padding-left:20px;
  padding-right:30px;     
  position:absolute;
  left:0; 
  bottom:-50px;
  background:rgba(0,0,0,0.3); 
  color:#FFF; 
}

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