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    HTML+CSS+JS實現(xiàn)堆疊輪播效果的示例代碼

     2020-10-16 14:08  來源: 腳本之家   我來投稿 撤稿糾錯

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    這篇文章主要介紹了HTML+CSS+JS實現(xiàn)堆疊輪播效果,本文通過實例代碼給大家介紹的非常詳細(xì),對大家的學(xué)習(xí)或工作具有一定的參考借鑒價值,需要的朋友可以參考下

    效果:

    輪播圖在向一個方向移動的同時,要對其每一個圖片的大小,位置,透明度以及層級進(jìn)行改變

    原理:

    輪播圖向左移動時將第一個子元素剪切到末尾,輪播圖向右移動時,將末尾子元素剪切到最前面,以此實現(xiàn)無縫輪播效果,再因為li剪切后,下一個li會補(bǔ)上(例如第一個子元素被剪切到最后時,第二個字元素會補(bǔ)上成為第一個子元素),所以li下標(biāo)不變,以次來修改每一個位置的li的屬性(大小,位置,透明度,層級)

    HTML代碼:

    <body>
    <div class="smallBox">
    <div class="arrowLeft">←</div>
    <div class="smallPicBox"> //用一個div存放一個ul,并對ul里的每一個li進(jìn)行初始樣式設(shè)置
    <ul>
    <li id="li1" style="position: absolute;top:calc(50% - 200px);left: 0px;z-index:1;background-color: aqua;transform: scale(0.5);transition: 0.3s;opacity: 0.5;background-image: url(./images/01.jpg);background-size: cover;"></li>
    <li id="li2" style="position: absolute;top:calc(50% - 200px);left: 150px; z-index:2;background-color: red;transform: scale(0.7); transition: 0.3s;opacity: 0.7;background-image: url(./images/02.jpg);background-size: cover;"></li>
    <li id="li3" style="position: absolute;top:calc(50% - 200px);left: 300px; z-index:3;background-color: blue;transform: scale(0.9); transition: 0.3s;opacity: 0.9;background-image: url(./images/03.jpg);background-size: cover;"></li>
    <li id="li4" style="position: absolute;top:calc(50% - 200px);left: 450px; z-index:4;background-color: green;transform: scale(1); transition: 0.3s;opacity: 1;background-image: url(./images/04.jpg);background-size: cover;"></li>
    <li id="li5" style="position: absolute;top:calc(50% - 200px);left: 600px; z-index:3;background-color: yellow;transform: scale(0.9); transition: 0.3s;opacity: 0.9;background-image: url(./images/05.jpg);background-size: cover;"></li>
    <li id="li6" style="position: absolute;top:calc(50% - 200px);left: 750px; z-index:2;background-color: gray;transform: scale(0.7); transition: 0.3s;opacity: 0.7;background-image: url(./images/06.jpg);background-size: cover;"></li>
    <li id="li7" style="position: absolute;top:calc(50% - 200px);left: 900px; z-index:1;background-color: deeppink;transform: scale(0.5); transition: 0.3s;opacity: 0.5;background-image: url(./images/07.jpg);background-size: cover;"></li>
    </ul>
    </div>
    <div class="arrowRight">→</div>
    </div>
    </div>
    </body>

    CSS代碼:

    <style>
    *{
    margin: 0;
    padding: 0;
    list-style: none;
    }
    .albumBox{
    width: 1200px;
    height: 400px;
    margin: 0 auto;
    border: 1px solid #000;
    }

    .smallBox{
    height: 400px;
    line-height: 400px;
    position: relative;
    }
    .smallPicBox{
    width: 1100px;
    height: 400px;
    float: left;
    position: relative;
    }
    .smallPicBox ul{
    width: 100%;
    height: 400px;
    }
    .smallPicBox li{
    width: 320px;
    height: 400px;
    float: left;
    border: 1px solid #000;
    box-sizing: border-box;
    }
    .smallBox .current::after{
    content: "\25b2";
    position: absolute;
    top: -31px;
    left: 70px;
    color: red;

    }
    .arrowLeft{
    width: 50px;
    height: 400px;
    position: absolute;
    left: 0;
    border: 1px solid #000;
    box-sizing: border-box;
    background-color: gray;
    z-index: 10;
    }
    .arrowRight{
    width: 50px;
    height: 400px;
    position: absolute;
    right: 0;
    border: 1px solid #000;
    box-sizing: border-box;
    background-color: gray;
    z-index: 10;
    }
    </style>

    JS代碼:

    <script>
    var arrowLeft=document.querySelector(".arrowLeft")
    var arrowRight=document.querySelector(".arrowRight")
    var ul=document.querySelector(".smallPicBox ul")
    var li=document.querySelectorAll(".smallPicBox li")
    var timerId=0
    arrowLeft.onclick=function(){ //左箭頭點擊事件
    li=document.getElementsByTagName('li')
    ul.appendChild(li[0]) //將ul的第0個子元素剪切到末尾,實現(xiàn)無縫輪播
    posi(li) //修改每一個li的屬性
    }
    arrowRight.onclick=function(){ //右箭頭點擊事件
    li=document.getElementsByTagName('li') //重新獲取li
    ul.insertBefore(li[6],li[0]) //將ul的最后一個子元素剪切到最前面,實現(xiàn)無縫輪播
    posi(li) //修改每一個li的屬性
    }

    function posi(li){ //修改li屬性函數(shù)
    var n1=0
    for(var x=0;x<li.length;x++){ //修改位置
    li[x].style.left=n1+'px'
    n1=n1+150
    }
    for(var i=0;i<li.length/2;i++){ //修改層級
    li[i].style.zIndex=i+1
    li[li.length-1-i].style.zIndex=i+1
    }
    li[3].style.zIndex='4'
    var n2=0.3
    for(var j=0;j<li.length/2;j++){ //縮放
    n2=parseFloat(n2+0.2)
    li[j].style.transform='scale('+n2+')'
    li[li.length-1-j].style.transform='scale('+n2+')'
    }
    li[3].style.transform='scale(1)'
    var n3=0.3
    for(var k=0;k<li.length/2;k++){ //修改透明度
    n3=parseFloat(n3+0.2)
    li[k].style.opacity=n3
    li[li.length-1-k].style.opacity=n3
    }
    li[3].style.opacity='1'
    }
    //鼠標(biāo)移入移出
    temerId=setInterval(function(){
    arrowLeft.click()
    }, 1000);
    arrowLeft.onmouseover=function(){
    clearInterval(temerId)
    }
    arrowLeft.onmouseout=function(){
    temerId=setInterval(function(){
    arrowLeft.click()
    }, 1000);
    }
    arrowRight.onmouseover=function(){
    clearInterval(temerId)
    }
    arrowRight.onmouseout=function(){
    temerId=setInterval(function(){
    arrowLeft.click()
    }, 1000);
    }
    </script>

    注:本例js是直接寫在body里的,也可以單獨寫一個js文件,在引入到html界面

    文章來源:腳本之家,原文鏈接:https://www.jb51.net/css/744188.html

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