两个盒子的移入移出
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
body {
font-family: "Microsoft YaHei", serif;
}
body,
dl,
dd,
p,
h1,
h2,
h3,
h4,
h5,
h6 {
margin: 0;
}
ol,
ul,
li {
margin: 0;
padding: 0;
list-style: none;
}
img {
border: none;
}
#box1,
#box2 {
width: 200px;
height: 50px;
background: #999;
margin: 50px auto;
line-height: 50px;
font-weight: bolder;
color: #fff;
text-align: center;
font-size: 12px;
}
#box1.show {
background: red;
color: pink;
}
#box2.show {
background: skyblue;
color: white;
}
</style>
</head>
<body>
<div id="box1"></div>
<div id="box2"></div>
<script>
// 1. 获取DOM元素
let oBox1 = document.getElementById('box1')
let oBox2 = document.getElementById('box2')
// 2. 绑定鼠标事件
oBox1.onmouseenter = function () {
this.innerHTML = '我被移入了'
// this.style.background='skyblue'//以前加加样式的写法,
// this.style.color='red'
oBox2.innerHTML = 'Box1被移入了'
this.className = 'show'//将样式放在#box1.show选择器里,加类名显示
}.onmouseleave = function () {
thi
oBox1s.innerHTML = ''
this.className = '' //类名不显示
oBox2.innerHTML = ''
}
oBox2.onmouseenter = function () {
this.innerHTML = '我被移入了'
this.className = 'show'
oBox1.innerHTML = 'Box1被移出了'
}
oBox2.onmouseleave = function () {
this.innerHTML = ''
this.className = ''
oBox1.innerHTML = ''
}
</script>
</body>
</html>
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