Purpose:
Achieve the fade-in and fade-out effect of the picture
(Learning video sharing: html5 video tutorial)
The specific code is as follows:
<!doctype html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no">
<meta name='apple-mobile-web-app-capable' content='yes' />
<meta name="format-detection" content="telephone=no" />
<meta http-equiv='Content-Type' content='textml;charset=UTF-8' />
<title>移动端</title>
<style>
*{
padding: 0;
margin: 0;
}
#slideshow{
width: 160px;
height: 600px;
margin: 0 auto; /*设置在页面水平居中*/
overflow: hidden;
position: relative;
}
#slideshow img{
width: 160px;
position: absolute; /*图片采取绝对定位，均位于左上角，重叠在一起*/
top: 0;
left: 0;
opacity: 0; /*初始不透明度为0，图片都看不见*/
transition: opacity 1s linear; /*--重点--定义一个关于透明度的transition*/
}
#slideshow img.active{
opacity: 1; /*有active类的图片不透明度为1，即显示图片*/
}
</style>
</head>
<body>
<div id="slideshow">
<!-- 插入轮播的图片们 -->
<img src="/static/imghwm/default1.png" data-src="img/1 (1).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (2).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (3).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (4).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (5).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (6).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (7).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (8).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (9).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (10).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
<img src="/static/imghwm/default1.png" data-src="img/1 (11).jpg" class="lazy" / alt="Use html5 to achieve the fade-in and fade-out effect of images" >
</div>
<script>
//---------主角：轮播图函数-------------
function slideshow() {
var slideshow=document.getElementById("slideshow"),
imgs=slideshow.getElementsByTagName("img"), //得到图片们
current=0; //current为当前活跃的图片编号
function slideOff() {
imgs[current].className=""; //图片淡出
}
function slideOn() {
imgs[current].className="active"; //图片淡入
}
function changeSlide() { //切换图片的函数
slideOff();
current++; //自增1
if(current>=imgs.length) current=0;
slideOn();
}
//每2s调用changeSlide函数进行图片轮播
var slideon=setInterval(changeSlide,2000);
slideshow.onmouseover=function () {
clearInterval(slideon); //当鼠标移入时清除轮播事件
}
slideshow.onmouseout=function () {
slideon=setInterval(changeSlide,1500); //当鼠标移出时重新开始轮播事件
}
}
slideshow();
</script>
</body>
</html>Related recommendations: html5 tutorial
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