前言：登录页面是前端开发中最常见的页面，下面是登录页面效果图和源代码，CV大法直接拿走。
1、登录页面
源代码：
<!DOCTYPE html>
<html><head><meta charset="utf-8"><title>登录</title><style>* {margin: 0;padding: 0;box-sizing: border-box;}body {height: 100vh;background-color: aquamarine;background: url("https://images.pexels.com/photos/936722/pexels-photo-936722.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=1") no-repeat;background-size: cover;}.Box {position: fixed;top: 50%;left: 50%;transform: translate(-50%, -50%);width: 550px;height: 330px;display: flex;}.left {position: relative;width: 50%;height: 100%;background-color: rgba(57, 99, 134, 0.75);}.right {position: relative;width: 50%;height: 100%;background-color: rgba(255, 255, 255, 1);}.centerBox {position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);width: 80%;text-align: center;}.left img {width: 50px;height: 50px;margin-bottom: 5px;}.left p {font-size: 14px;color: #fff;}.left h4 {font-size: 18px;color: #fff;margin-bottom: 10px;}.right form {position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);width: 80%;text-align: center;}h3 {margin-bottom: 20px;}input {width: 100%;height: 30px;border: 1px solid #767676;background-color: transparent;padding-left: 10px;font-size: 12px;color: #000000;margin-bottom: 15px;outline: none;}.loginBtn {width: 100%;height: 35px;line-height: 32px;text-align: center;font-size: 15px;color: #fff;border-radius: 6px;background: rgb(57, 99, 134);outline: none;border: none;margin-top: 10px;}.no {cursor: pointer;margin-top: 30px;text-align: center;font-size: 12px;color: #828282;}</style></head><body><div class="Box"><div class="left"><div class="centerBox"><img src="https://img0.baidu.com/it/u=2804005887,994501744&fm=253&fmt=auto&app=138&f=JPEG?w=200&h=200"alt=""><h4>某某后台管理系统</h4><p>This is a description</p></div></div><div class="right"><form action=""><h3>欢迎登录</h3><input type="text" placeholder="请输入账号" required><input type="password" placeholder="请输入密码" required><input type="submit" class="loginBtn" value="登录"></button><p class="no">没有账号？立即注册</p></form></div></div></body>
</html>2、注册页面
源代码：
<!DOCTYPE html>
<html><head><meta charset="utf-8"><title>注册</title><style>* {margin: 0;padding: 0;box-sizing: border-box;}body {height: 100vh;background: url("https://images.pexels.com/photos/290595/pexels-photo-290595.jpeg?auto=compress&cs=tinysrgb&w=1260&h=750&dpr=1") no-repeat;background-size: cover;}.Box {position: fixed;top: 50%;left: 50%;transform: translate(-50%, -50%);width: 650px;height: 400px;display: flex;}.left {position: relative;width: 45%;height: 100%;background: url("https://img0.baidu.com/it/u=4234357226,4114415663&fm=253&fmt=auto&app=138&f=PNG?w=900&h=462") no-repeat;background-size: cover;}.right {position: relative;width: 55%;height: 100%;background-color: rgba(255, 255, 255, 1);}.centerBox {position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);width: 80%;text-align: center;}.left img {width: 50px;height: 50px;margin-bottom: 5px;}.left p {font-size: 14px;color: #fff;}.left h4 {font-size: 18px;color: #fff;margin-bottom: 10px;}.right form {position: absolute;top: 50%;left: 50%;transform: translate(-50%, -50%);width: 80%;text-align: center;}h3 {margin-bottom: 20px;color: #5f89ca;}input {width: 100%;height: 30px;border: 1px solid #5f89ca;background-color: transparent;padding-left: 10px;font-size: 12px;color: #000000;margin-bottom: 15px;outline: none;}.loginBtn {width: 100%;height: 35px;line-height: 32px;text-align: center;font-size: 15px;color: #fff;background: #5f89ca;outline: none;border: none;margin-top: 10px;}.loginBtn:hover {cursor: pointer;background-color: deepskyblue;}.no {cursor: pointer;margin-top: 10px;text-align: center;font-size: 12px;color: #828282;}.yzmBox {display: flex;justify-content: flex-start;}.yzmBox input {width: 70%;border-top-right-radius: 0;border-bottom-right-radius: 0;}.yzmBox .btn {cursor: pointer;width: 29%;background-color: #5f89ca;color: #ffffff;height: 30px;outline: none;border: 1px solid #5f89ca;font-size: 12px;margin-left: 1%;border-top-left-radius: 0;border-bottom-left-radius: 0;}</style></head><body><div class="Box"><div class="left"><div class="centerBox"><img src="https://img0.baidu.com/it/u=2804005887,994501744&fm=253&fmt=auto&app=138&f=JPEG?w=200&h=200"alt=""><h4>某某后台管理系统</h4><p>This is a description</p></div></div><div class="right"><form action=""><h3>新用户注册</h3><input type="text" placeholder="请输入用户名" required><input type="password" placeholder="请输入密码" required><input type="password" placeholder="请再次输入密码" required><input type="text" placeholder="请输入手机号" required><div class="yzmBox"><input type="text" placeholder="请输入验证码"><button class="btn">发送</button></div><input type="submit" class="loginBtn" value="注册"></button><p class="no">已有账号？<span style="text-decoration: underline;cursor: pointer;">去登陆</span></p></form></div></div></body>
</html>