简单的基于html，css，javascript的登录注册页面

html代码

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>登录注册</title>
		<link rel="stylesheet" type="text/css" href="./pageChange.css"/>
		<script src="./pageChange.js" type="text/javascript" charset="utf-8"></script>
	</head>
	<body>
		<div class="control">
			<div class="item">
				<div  class="active">登录</div><div id="">注册</div>
			</div>
			<div class="content">
				<div id="" style="display: block;">
					<p>账号</p>
					<input type="text"    placeholder="用户名"/>
					<p>密码</p>
					<input type="password" placeholder="密码" />
					<br>
					<input type="submit"  value="登录" />
				</div>
				<div id="">
					<p>用户名</p>
					<input type="text"  placeholder="用户名"/> 
					<p>密码</p>
					<input type="password" placeholder="密码"  />
					<p>邮箱</p>
					<input type="text" placeholder="邮箱"  />
					<br>
					<input type="submit" value="登录" />
				</div>
			</div>
		</div>
		
	</body>
</html>

CSS代码

* {
	margin: 0;
	padding: 0;
}

body{
	background: #f3f3f3;
	width: 100%;
	height: 100px;
}

.control{
	width: 4sa40px;
	background: white;
	position: absolute;
	top:50%;
	left: 50%;
	transform: translate(-50%,-50%);
	border-radius: 5px;
} 

.item {
	width: 340px;
	height: 60px;
	background: #eeeeee;
}

.item div {
	width: 170px;
	height: 60px;
	display: inline-block;
	color: black; 
	font-size: 18px;
	text-align: center;
	line-height: 60px;
	cursor: pointer;
}
 
.content{
	width: 100%;
}
.content div{
	margin: 20px 30px;
	display: none;
	text-align: left;
}
p{
	color: #4a4a4a;
	margin-top: 30px;
	margin-bottom: 6px;
	font-size: 15px;
}
.content input[type="text"], .content input[type="password"]{
	width: 100%;
	height: 40px;
	border-radius: 3px;
	border: 1px solid #adadad;
	padding: 0 10px;
	box-sizing: border-box;
}
.content input[type="submit"]{
	margin-top: 40px;
	width: 100%;
	height: 40px;
	border-radius: 5px;
	color: white;
	border: 1px solid #adadad;
	background:#00dd60 ;
	cursor: pointer;
	letter-spacing: 4px;
	margin-bottom: 40px;
	
}
.active{
	background: white;
}
.item div:hover{
	background: #f6f6f6;
}

JavaScript代码

window.onload = function() {
	var item = document.getElementsByClassName("item");
	var it = item[0].getElementsByTagName("div")

	var content = document.getElementsByClassName("content")
	var con = content[0].getElementsByTagName('div');

	for (let i = 0; i < it.length; i++) {
		it[i].onclick = function() {
			for (let j = 0; j < it.length; j++) {
				it[j].className = '';
				con[j].style.display = "none";
			}
			this.className = "active";
			it[i].index = i;
			con[i].style.display = "block";
		}
	}
}

效果展示图
在这里插入图片描述

简单的基于html，css，javascript的登录注册页面

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