jq属性和事件的练习
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
<style>
.red{
color: red;
}
</style>
<script type="text/javascript">
$(function(){
$('.btn1').click(function(){
$('p').toggleClass('red')
$('span').text('hello word')
$('h3').html('<h1>我变成h1标题</h1>')
$('p').animate({'fontSize':'40px'},3000)
$('div').animate({'left':'400px'},1000)
})
$('.btn2').click(function(){
$('div').animate({
'height':'400px',
'width':'300px',
'opacity':'0.3'
},1000)
})
$('.btn3').click(function(){
$('input').val('改变了里面的内容')
})
})
</script>
<style type="text/css">
div{width:100px;height:100px;background:red;}
</style>
</head>
<body>
<button class="btn1">点击字体变大</button>
<p>赛第六届泛咖啡飒飒的浪费大声道</p>
<span style="display:block;margin:30px;">速度快撒飒飒的</span>
<h3>我是标题3</h3>
<button class="btn2">盒子改变</button>
<div></div>
<button class="btn3" style="width:50px;height:30px;display:block;margin-top:30px";>val值</button>
<input type="text" value="值">
</body>
</html>