近期由于项目需要，学习了一下js弹窗的实现，感觉挺简单的。
html代码部分：
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>弹窗</title>
<link rel="stylesheet" type="text/css" href="弹窗.css">
</head>
<body>
<button id="open_btn" class="btn">弹窗</button>
<!-- 弹窗内容开始 -->
<div id="background" class="back">
<div id="div1" class="content">
<div id="close">
<span id="close-button">×</span>
<h2>弹窗头部</h2>
</div>
<div id="div2">
<h3>弹窗标题</h3>
<p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iste, ullam, nisi, enim laboriosam ea cum necessitatibus ipsum cupiditate neque soluta qui autem odit eligendi blanditiis voluptatem repellat suscipit quia perspiciatis.</p>
</div>
<h3 id="foot">底部内容</h3>
</div>
</div>
<!-- 弹窗内容结束 -->
<script src="弹窗.js"></script>
</body>
</html>css代码部分：
body{
font-family: Arial,Helvetica,sans-serif;
font-size: 17px;
text-align: 1.5;
}
#open_btn {
background: #009900;
}
#background {
display: none;
position: fixed;
left: 0;
top: 0;
width: 100%;
height: 100%;
background-color: rgba(0,0,0,0.5);
}
#div1 {
background:#eeeeee;
width: 70%;
z-index: 1;
margin: 12% auto;
overflow: auto;
}
span {
color: white;
padding-top: 12px;
cursor: pointer;
padding-right: 15px;
}
#div2 {
background:#eeeeee;
margin: auto;
height: 300px;
padding: 0 20px;
}
#close {
padding: 5px;
background: #5cd31b;
}
#close-button {
float: right;
font-size: 30px;
}
#foot {
padding: 5px 0;
text-align: center;
background: #5cd31b;
color: white;
}
h2 {
margin: 10px 0;
color: white;
padding-left: 15px;
}
h3 {
margin: 0 0px;
padding-top: 15px;
}js代码部分：
var btn = document.getElementById('open_btn');
var div = document.getElementById('background');
var close = document.getElementById('close-button');
btn.onclick = function show() {
div.style.display = "block";
}
close.onclick = function close() {
div.style.display = "none";
}
window.onclick = function close(e) {
if (e.target == div) {
div.style.display = "none";
}
}实现效果如下：
今天就分享到这了，更多资料下方领取！
