本文主要为大家详细介绍了javascript+html5+css3自定义弹出窗口效果，具有一定的参考价值，感兴趣的小伙伴们可以参考一下，希望能帮助到大家。
效果图：
源码：
1.demo.jsp
<%@ page contenttype="text/html;charset=utf-8" language="java" %>
<html>
<head>
<title>自定义弹出窗口</title>
<script type="text/javascript" src="js/mylayer.js"></script>
<style type="text/css">
button{
width: 50px;
height: 50px;
border: 1px solid blue;
background-color: blue;
color: red;
border-radius: 5px;
-webkit-box-shadow: 2px 2px 2px gray;
-moz-box-shadow: 2px 2px 2px gray ;
box-shadow: 2px 2px 2px gray ;
}
button:hover{
background-color: green;
cursor: pointer;
}
</style>
<script type="text/javascript">
function openwindow() {
new mylayer({
top:"10%",
left:"10%",
width:"80%",
height:"80%",
title:"我的标题",
content:"操作成功"
}).openlayer();
}
</script>
</head>
<body>
<button type="button" onclick="openwindow()">打开弹窗</button>
</body>
</html>
2.mylayer.js
/**
* created by zhuwenqi on 2017/6/16.
*/
/**
* @param options 弹窗基本配置信息
* @constructor 构造方法
*/
function mylayer(options) {
this.options = options ;
}
/**
* 打开弹窗
*/
mylayer.prototype.openlayer = function () {
var background_layer = document.createelement("p");
background_layer.style.display = "none";
background_layer.style.position = "absolute";
background_layer.style.top = "0px";
background_layer.style.left = "0px";
background_layer.style.width = "100%";
background_layer.style.height = "100%";
background_layer.style.backgroundcolor = "gray";
background_layer.style.zindex = "1001";
background_layer.style.opacity = "0.8" ;
var open_layer = document.createelement("p");
open_layer.style.display = "none";
open_layer.style.position = "absolute";
open_layer.style.top = this.options.top === undefined ? "10%" : this.options.top;
open_layer.style.left = this.options.left === undefined ? "10%" :this.options.left;
open_layer.style.width = this.options.width === undefined ? "80%" : this.options.width;
open_layer.style.height = this.options.height === undefined ? "80%" : this.options.height;
open_layer.style.border = "1px solid lightblue";
open_layer.style.borderradius = "15px" ;
open_layer.style.boxshadow = "4px 4px 10px #171414";
open_layer.style.backgroundcolor = "white";
open_layer.style.zindex = "1002";
open_layer.style.overflow = "auto";
var p_toolbar = document.createelement("p");
p_toolbar.style.textalign = "right";
p_toolbar.style.paddingtop = "10px" ;
p_toolbar.style.backgroundcolor = "aliceblue";
p_toolbar.style.height = "40px";
var span_title = document.createelement("span");
span_title.style.fontsize = "18px";
span_title.style.color = "blue" ;
span_title.style.float = "left";
span_title.style.marginleft = "20px";
var span_title_content = document.createtextnode(this.options.title === undefined ? "" : this.options.title);
span_title.appendchild(span_title_content);
p_toolbar.appendchild(span_title);
var span_close = document.createelement("span");
span_close.style.fontsize = "16px";
span_close.style.color = "blue" ;
span_close.style.cursor = "pointer";
span_close.style.marginright = "20px";
span_close.onclick = function () {
open_layer.style.display = "none";
background_layer.style.display = "none";
};
var span_close_content = document.createtextnode("关闭");
span_close.appendchild(span_close_content);
p_toolbar.appendchild(span_close);
open_layer.appendchild(p_toolbar);
var p_content = document.createelement("p");
p_content.style.textalign = "center";
var content_area = document.createtextnode(this.options.content === undefined ? "" : this.options.content);
p_content.appendchild(content_area);
open_layer.appendchild(p_content);
document.body.appendchild(open_layer);
document.body.appendchild(background_layer);
open_layer.style.display = "block" ;
background_layer.style.display = "block";
};
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以上就是javascript、html5、css3自定义弹出窗口的详细内容。