不要问我为什么一堆代码，因为U盘损坏导致丢了一堆各种玩意的我习惯性的会在多个地方保存文件。
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<link rel="stylesheet" type="text/css" href="css/login.css" />
<!-- <script type="text/javascript">
window.onload = function() {
// 点击然后弹出弹框
// querySelector() 方法仅仅返回匹配指定选择器的第一个元素。如果你需要返回所有的元素，请使用 querySelectorAll() 方法替代。
// // querySelector("button");获取文档中第一个button元素
var btn = document.querySelector("button");
btn.onclick = function() {
var box = document.querySelector(".box");
box.style.display = "flex";
}
// 点击叉号然后关闭弹窗
// querySelector(".close");获取文档中 class="close" 的第一个元素:
var close = document.querySelector(".close");querySelector(".close");
close.onclick = function() {
var box = document.querySelector(".box");
box.style.display = "none";
}
}
</script> -->
<script type="text/javascript">
window.onload = function() {
var btns = document.querySelectorAll(".box .title a");
var forms = document.querySelectorAll(".box .text form");
// console.log(btns); 给元素加事件 集合不能加事件
for (var i = 0; i < btns.length; i++) {
btns[i].onclick = function() {
// 方法一
// for (var j = 0; j < btns.length; j++) {
// if(btns[j]==this){
// btns[j].className = "active";
// }else{
// btns[j].className = "";
// }
// }
// 方法二
for (var j = 0; j < btns.length; j++) {
btns[j].className = "";
}
this.className = "active";
// 点击时找到idx 给他俩都不显示
var idx = this.attributes["data-idx"].value;
for (var j = 0; j < forms.length; j++) {
forms[j].style.display = "none";
}
forms[idx].style.display = "block";
}
}
}
</script>
</head>
<body>
<iframe src="head.html" width="100%" height="200"></iframe>
<!-- <button type="button">显示登录框</button>
<div class="box">
<div class="content"> -->
<!-- × 表示叉号 -->
<!-- <span class="close">×</span>
</div>
</div> -->
<div class="content">
<div class="box">
<div class="right">
<div class="title">
<a href="#" class="active" data-idx="0">登录</a>
<a href="#" data-idx="1">注册</a>
</div>
<div class="text">
<form action="#" method="get">
<div>
<input type="text" name="name" id="name" value="" />
</div>
<div>
<input type="password" name="pwd" id="pwd" value="" />
</div>
<div>
<input type="checkbox" name="chk" id="chk" value="" />
<label for="chk">自动登录</label>
</div>
<div>
<input type="submit" value="登录" />
</div>
</form>
<form action="#" method="get">
<input type="submit" value="" />
</form>
</div>
</div>
</div>
</div>
<iframe src="foot.html" target="_top" width="100%" height="250px"></iframe>
</body>
</html>
CSS
/* *{
margin: 0;
padding: 0;
}
body,.box{
width: 100%;
height: 600px;
}
body{
position: relative;
}
.box{
position: absolute;
top: 0;
left: 0;
background-color: rgba(0,0,0,0.333);
display: flex;
justify-content: space-around;
align-items: center;
display: none;
}
.box .content .close{
float: right;
width: 16px;
display: block;
}
.box .content{
width: 750px;
height: 380px;
background-color: #FFFFFF;
} */
body {
margin: 0;
}
.content {
background-color: rgba(0, 0, 0, 0.333);
height: 600px;
display: flex;
justify-content: space-around;
align-items: center;
}
.content .box {
width: 750px;
height: 380px;
background-image: url(../img/pop-bg.jpg);
display: flex;
/* flex-direction: column; */
justify-content: flex-end;
}
.content .box .right {
height: 260px;
width: 260px;
background-color: rgba(0,0,0,0);
margin-right: 60px;
margin-top: 40px;
padding: 20px;
}
.content .box .right .title {
font-size: 0;
}
.content .box .right .title a {
font-size: 20px;
color: #333333;
text-decoration: none;
display: inline-block;
width: 130px;
text-align: center;
border-bottom: 1px solid #CCCCCC;
padding-bottom: 15px;
}
.content .box .right .title .active {
color: #27d5bf;
border-bottom: 2px solid #27d5bf;
padding-bottom: 14px;
}
.content .box .right .text {
font-size: 16px;
}
.content .box .right .text div {
margin: 20px 0;
}
.content .box .right .text div input[type=text],
.content .box .right .text div input[type=password] {
width: 256px;
height: 24px;
border-radius: 4px;
outline: 1px solid #CCCCCC;
border: none;
}
.content .box .right .text div input[type=text]:focus,
.content .box .right .text div input[type=password]:focus {
outline: 1px solid #27d5bf;
border-bottom: transparent;
}
.content .box .right .text div input[type=submit] {
width: 260px;
height: 38px;
border: none;
font-size: 20px;
border-radius: 4px;
}
.content .box .right .text form{
display: none;
}
.content .box .right .text form:first-child{
display: block;
}
iframe {
/* overflow: hidden;干掉滚动条 */
overflow: hidden;
border: none;
margin: 0;
padding: 0;
margin-bottom: -4px;
}