知识点
- each遍历节点
- animate()自定义动画
代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<style>
* {
padding: 0;
margin: 0;
list-style: none;
}
.box {
width: 350px;
height: 350px;
margin: 100px auto;
cursor: pointer;
}
.box ul li {
float: left;
width: 80px;
height: 80px;
text-align: center;
border: 1px solid #ccc;
box-sizing: border-box;
margin: 2px;
}
.box>ul>li>span {
display: block;
width: 24px;
height: 24px;
background: url("images/bg.png") 0 -24px no-repeat;
margin: 10px auto;
}
</style>
</head>
<body>
<div class="box">
<ul>
<li><span></span>百度</li>
<li><span></span>淘宝</li>
<li><span></span>新浪</li>
<li><span></span>网易</li>
<li><span></span>搜狐</li>
<li><span></span>腾讯</li>
<li><span></span>优酷</li>
<li><span></span>京东</li>
</ul>
</div>
<script type="text/javascript" src="lib/jquery-3.3.1.js"></script>
<script type="text/javascript">
$(function () {
// 1. 展示图片
var $li = $('.box>ul>li');
$li.each(function (index, value) {
$(this).children('span').css({
'background': ' url("images/bg.png") 0 -' + index * 24 + 'px no-repeat'
})
});
// 2. 抖动动画
$li.hover(function () {
shake(this);
}, function () {
// 停止抖动
stopShake(this);
});
function shake(ele) {
// 1. 设置css
$(ele).css({
'position': 'relative'
});
// 2. 确定走动的值
var animateLeft = $(ele).css('left') === '10px' ? '-10px' : '10px';
$(ele).animate({
left: animateLeft
}, 100, function () {
shake(ele);
});
}
function stopShake(ele) {
$(ele).stop(true, false).css({
left: '0'
})
}
});
</script>
</body>
</html>
运行结果
鼠标放上后会不停抖动
