用到一些封装好的运动函数,主要是定时器
效果为图片和图片的描述定时自动更换。
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
ul,
li,
p,
h3 {
padding: 0;
margin: 0;
list-style: none;
}
img {
border: none;
vertical-align: top;
}
#bg_box {
width: 1000px;
height: 590px;
margin: 50px auto;
position: relative;
background: url(img/bg1.jpg) no-repeat;
}
.pic {
width: 440px;
height: 274px;
position: absolute;
top: 50px;
left: 220px;
overflow: hidden;
}
.li_box {
width: 1760px;
height: 274px;
position: absolute;
left: 0;
}
.tags {
width: 440px;
height: 80px;
position: absolute;
bottom: -80px;
background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.4) 0%, rgba(255, 255, 255, 0) 100%);
color: white;
padding-left: 20px;
padding-top: 15px;
box-sizing: border-box;
}
.tags:nth-of-type(1) {
/*bottom: 0;*/
}
.img {
float: left;
width: 440px;
height: 274px;
}
h3 {
font: bold 20px/30px "微软雅黑";
}
p {
font: 16px/30px "微软雅黑";
}
</style>
<script src="tween.js"></script>
<script src="commom.js"></script>
<script type="text/javascript">
window.onload = function() {
//获取元素
var liBbox = $('ul')[0];
var li = $('li');
var tags = $('.tags')
var num = 0; //设置初始位置
Change()
function Change() {
var M = tags[num];
MTween(M, 'bottom', 0, 500, 'px', 'linear', function() { //先让描述内容出现
num++
if(num > li.length - 1) { //边界设置。
return;
}
setTimeout(function() {
MTween(M, 'bottom', -80, 500, 'px', 'linear', function() { //让描述内容不显示
MTween(liBbox, 'left', -num * 440, 800, 'px', 'linear', function() {
Change();
}); //切换图片
});
}, 1000)
});
}
}
</script>
</head>
<body>
<section id="bg_box">
<div class="pic">
<ul class="li_box">
<li>
<img class="img" src="img/a5.gif">
</li>
<li>
<img class="img" src="img/a6.gif">
</li>
<li>
<img class="img" src="img/a7.gif">
</li>
<li>
<img class="img" src="img/a8.gif">
</li>
</ul>
<div class="tags">
<h3 class="title">下雨了~~~</h3>
<p class="tag">这是一个适合在家睡觉的日子!!</p>
</div>
<div class="tags">
<h3 class="title">包饺子~~~</h3>
<p class="tag">一只会居家过日子的小狐狸!!</p>
</div>
<div class="tags">
<h3 class="title">生气了~~~</h3>
<p class="tag">吃掉好吃的就不生气了!!</p>
</div>
<div class="tags">
<h3 class="title">出发了~~~</h3>
<p class="tag">来一段说走就走的旅行!!</p>
</div>
</div>
</section>
</body>
</html>
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