<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="jquery.min.js"></script>
</head>
<style>
.demo{
width: 400px;
height: 400px;
background: red;
}
.test1{
width: 50px;
height: 50px;
background: yellow;
}
</style>
<body>
<div class="demo">
<ul>
<li><a href=""></a>1</li>
<li><a href=""></a>2</li>
<li><a href=""></a>3</li>
<li><a href=""></a>4</li>
<li><a href=""></a>5</li>
</ul>
</div>
</body>
<script>
// after 是在选中元素的后面
$('.demo').after("<div class='test1'></div>")
// before是在选中元素的前面
$('.demo').before("<div class='test1'></div>")
// append 是在选中元素的内部的所有元素后面
$('.demo').append("<div class='test1'></div>")
// prepend是在选中元素的内部的所有元素的前面
$('.demo').prepend("<div class='test1'></div>")
</script>
</html>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="jquery.min.js"></script>
</head>
<style>
.demo{
width: 400px;
height: 400px;
background: red;
position: relative;
}
.test1{
width: 50px;
height: 50px;
background: yellow;
position: absolute;
top:0;
left:0;
}
</style>
<body>
<input type="button" value="start" class="start">
<input type="button" value="stop" class="stop">
<div class="demo">
<div class="test1"></div>
</div>
</body>
<script>
$('.start').click(function(){
$(".test1").animate({left:'+=200'},1500);
})
$('.stop').click(function(){
$('.test1').clearQueue();
$('.test1').stop();
})
</script>
</html>
