JQ的动画效果很不错
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script src="../Jquery/jquery-3.4.1.min.js"></script>
<style type="text/css">
div{
height: 100px;
width: 100px;
background-color: #008000;
}
p{
width: 200px;
background-color: #FFC0CB;
display: none;
}
</style>
</head>
<body>
<div>我是内容</div>
<script>
$(document).ready(function(){
$('div').hover(
function(){
$(this).css('background','red')
},
function(){
$(this).css('background','yellow')
}
)
$('button').click(function(){
$('p').toggle()
})
})
</script>
<p>我是一个隐藏的内容</p>
<button>点击我</button>
</body>
</html>