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HTML+CSS+JS實(shí)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(cuò)

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

效果:

輪播圖在向一個(gè)方向移動(dòng)的同時(shí),要對(duì)其每一個(gè)圖片的大小,位置,透明度以及層級(jí)進(jìn)行改變

原理:

輪播圖向左移動(dòng)時(shí)將第一個(gè)子元素剪切到末尾,輪播圖向右移動(dòng)時(shí),將末尾子元素剪切到最前面,以此實(shí)現(xiàn)無縫輪播效果,再因?yàn)閘i剪切后,下一個(gè)li會(huì)補(bǔ)上(例如第一個(gè)子元素被剪切到最后時(shí),第二個(gè)字元素會(huì)補(bǔ)上成為第一個(gè)子元素),所以li下標(biāo)不變,以次來修改每一個(gè)位置的li的屬性(大小,位置,透明度,層級(jí))

HTML代碼:

<body>
<div class="smallBox">
<div class="arrowLeft">←</div>
<div class="smallPicBox"> //用一個(gè)div存放一個(gè)ul,并對(duì)ul里的每一個(gè)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(diǎn)擊事件
li=document.getElementsByTagName('li')
ul.appendChild(li[0]) //將ul的第0個(gè)子元素剪切到末尾,實(shí)現(xiàn)無縫輪播
posi(li) //修改每一個(gè)li的屬性
}
arrowRight.onclick=function(){ //右箭頭點(diǎn)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(gè)子元素剪切到最前面,實(shí)現(xiàn)無縫輪播
posi(li) //修改每一個(gè)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(jí)
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(dú)寫一個(gè)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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