这是一个登陆注册在同一个页面滑动选择的页面
技术：html、css、javascript
简单页面实现（为了方便，已将代码放在同一文件引用）：
1.1、效果图
1.2、完整代码：
<!DOCTYPE html>
<html lang="en"><head><meta charset="UTF-8" /><meta http-equiv="X-UA-Compatible" content="IE=edge" /><meta name="viewport" content="width=device-width, initial-scale=1.0" /><title>登录/注册</title></head><style>/* root根伪类 --为自定义css 属性 方便我们重复使用同一个属性 自定义属性用var() 进行调用 */:root {/* 背景颜色 */--white: #e9e9e9;--gray: #333;--blue: #0367a6;--lightblue: #008997;/* 外边框圆角属性 */--button-radius: 0.7rem;--max-width: 758px;--max-height: 420px;/* 字体样式 */font-size: 16px;font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;}body {align-items: center;background-color: var(--white);background: url(https://pic1.zhimg.com/v2-95c83933bb8d33685321a2bd5579edf8_r.jpg?source=1940ef5c);background-attachment: fixed;background-position: center;background-repeat: no-repeat;background-size: cover;display: grid;height: 100vh;place-items: center;}.from_title {font-weight: 300;margin: 0;margin-bottom: 1.25rem;}.link {color: var(--gray);font-size: 0.9rem;margin: 1.5rem 0;text-decoration: none;}.container {background-color: var(--white);border-radius: var(--button-radius);box-shadow: 0 0.9rem 1.7rem rgba(0, 0, 0, 0.25);height: var(--max-height);max-width: var(--max-width);overflow: hidden;position: relative;width: 100%;}.container_from {height: 100%;position: absolute;top: 0;transition: all 0.6s ease-in-out;}.container--signin {left: 0;width: 50%;z-index: 2;}.container.right-panel-active .container--signin {transform: translateX(100%);}.container--signup {left: 0;opacity: 0;width: 50%;z-index: 1;}.container.right-panel-active .container--signup {animation: show 0.6s;opacity: 1;transform: translateX(100%);z-index: 5;}.container_overlay {height: 100%;left: 50%;overflow: hidden;position: absolute;top: 0;transition: transform 0.6s ease-in-out;width: 50%;z-index: 100;}.container.right-panel-active .container_overlay {transform: translateX(-100%);}.overlay {background-color: var(--lightblue);background: url(https://pic1.zhimg.com/v2-95c83933bb8d33685321a2bd5579edf8_r.jpg?source=1940ef5c);background-attachment: fixed;background-position: center;background-repeat: no-repeat;background-size: cover;height: 100%;left: -100%;position: relative;transform: translateX(0);transition: transform 0.6s ease-in-out;width: 200%;}.container.right-panel-active .overlay {transform: translateX(50%);}.overlay_panel {align-items: center;display: flex;flex-direction: column;height: 100%;justify-content: center;position: absolute;text-align: center;top: 0;transform: translateX(0);transition: transform 0.6s ease-in-out;width: 50%;}.overlay--left {transform: translateX(-20%);}.container.right-panel-active .overlay--left {transform: translateX(0);}.overlay--right {right: 0;transform: translateX(0);}.container.right-panel-active .overlay--right {transform: translateX(20%);}.btn {background-color: var(--blue);background-image: linear-gradient(90deg,var(--blue) 0%,var(--lightblue),74%);border-radius: 20px;border: 1px solid var(--blue);color: var(--white);cursor: pointer;font-size: 0.8rem;font-weight: bold;letter-spacing: 0.1rem;padding: 0.9rem 4rem;text-transform: uppercase;transition: transform 80ms ease-in;}.form > .btn {margin-top: 1.5rem;}.btn:active {transform: scale(0.95);}.btn:focus {outline: none;}.from {background-color: var(--white);display: flex;align-items: center;justify-content: center;flex-direction: column;padding: 0 3rem;height: 100%;text-align: center;}.input {background-color: #fff;border: none;padding: 0.9rem 0.9rem;margin: 0.5rem 0;width: 100%;}@keyframes show {0%,49.99% {opacity: 0;z-index: 1;}50%,100% {opacity: 1;z-index: 5;}}</style><body><!-- 整体布局 --><div class="container right-panel-active"><!-- 注册框 --><div class="container_from container--signup"><form action="#" class="from" id="from1"><h2 class="from_title">注册账号</h2><input type="text" placeholder="User" class="input" /><input type="email" placeholder="Email" class="input" /><input type="password" placeholder="Password" class="input" /><button class="btn" type="button">点击注册</button></form></div><!-- 登录框 --><div class="container_from container--signin"><form action="#" class="from" id="from2"><h2 class="from_title">欢迎登录</h2><input type="email" placeholder="Email" class="input" /><input type="password" placeholder="Password" class="input" /><a href="#" class="link">忘记密码？</a><button class="btn" type="button">登录</button></form></div><div class="container_overlay"><div class="overlay"><div class="overlay_panel overlay--left"><button type="button" class="btn" id="signin">已有帐号，直接登陆</button></div><div class="overlay_panel overlay--right"><button type="button" class="btn" id="signup">没有账号，点击注册</button></div></div></div></div></body><script>const signinBtn = document.getElementById("signin");const signupBtn = document.getElementById("signup");const firstForm = document.getElementById("from1");const secondForm = document.getElementById("from2");const container = document.querySelector(".container");signinBtn.addEventListener("click", () => {container.classList.remove("right-panel-active");});signupBtn.addEventListener("click", () => {container.classList.add("right-panel-active");});firstForm.addEventListener("submit", (e) => e.preventDefault());secondForm.addEventListener("submit", (e) => e.preventDefault());</script>
</html>2.1、效果图：
2.2、完整代码：
<!DOCTYPE html>
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8" /><metaname="viewport"content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"/><title>滑动切换的注册登录界面</title></head><style>* {/* 初始化 */margin: 0;padding: 0;}body {/* 100%窗口高度 */height: 100vh;/* 弹性布局 水平+垂直居中 */display: flex;justify-content: center;align-items: center;/* 渐变背景 */background: linear-gradient(200deg, #f3e7e9, #e3eeff);}.container {background-color: #fff;width: 650px;height: 415px;border-radius: 5px;/* 阴影 */box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1);/* 相对定位 */position: relative;}.form-box {/* 绝对定位 */position: absolute;top: -10%;left: 5%;background-color: #d3b7d8;width: 320px;height: 500px;border-radius: 5px;box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);display: flex;justify-content: center;align-items: center;z-index: 2;/* 动画过渡 加速后减速 */transition: 0.5s ease-in-out;}.register-box,.login-box {/* 弹性布局 垂直排列 */display: flex;flex-direction: column;align-items: center;width: 100%;}.hidden {display: none;transition: 0.5s;}h1 {text-align: center;margin-bottom: 25px;/* 大写 */text-transform: uppercase;color: #fff;/* 字间距 */letter-spacing: 5px;}input {background-color: transparent;width: 70%;color: #fff;border: none;/* 下边框样式 */border-bottom: 1px solid rgba(255, 255, 255, 0.4);padding: 10px 0;text-indent: 10px;margin: 8px 0;font-size: 14px;letter-spacing: 2px;}input::placeholder {color: #fff;}input:focus {color: #a262ad;outline: none;border-bottom: 1px solid #a262ad80;transition: 0.5s;}input:focus::placeholder {opacity: 0;}.form-box button {width: 70%;margin-top: 35px;background-color: #f6f6f6;outline: none;border-radius: 8px;padding: 13px;color: #a262ad;letter-spacing: 2px;border: none;cursor: pointer;}.form-box button:hover {background-color: #a262ad;color: #f6f6f6;transition: background-color 0.5s ease;}.con-box {width: 50%;/* 弹性布局 垂直排列 居中 */display: flex;flex-direction: column;justify-content: center;align-items: center;/* 绝对定位 居中 */position: absolute;top: 50%;transform: translateY(-50%);}.con-box.left {left: -2%;}.con-box.right {right: -2%;}.con-box h2 {color: #8e9aaf;font-size: 25px;font-weight: bold;letter-spacing: 3px;text-align: center;margin-bottom: 4px;}.con-box p {font-size: 12px;letter-spacing: 2px;color: #8e9aaf;text-align: center;}.con-box span {color: #d3b7d8;}.con-box img {width: 150px;height: 150px;opacity: 0.9;margin: 40px 0;}.con-box button {margin-top: 3%;background-color: #fff;color: #a262ad;border: 1px solid #d3b7d8;padding: 6px 10px;border-radius: 5px;letter-spacing: 1px;outline: none;cursor: pointer;}.con-box button:hover {background-color: #d3b7d8;color: #fff;}</style><body><div class="container"><div class="form-box"><!-- 注册 --><form class="register-box hidden"><h1>register</h1><input type="text" name="username" placeholder="用户名" /><input type="password" name="password" placeholder="密码" /><button>注册</button></form><!-- 登录 --><!-- <div class="login-box"> --><form action="" class="login-box"><h1>login</h1><input type="text" name="username" placeholder="用户名" /><input type="password" name="password" placeholder="密码" /><button>登录</button></form><!-- </div> --></div><div class="con-box left"><img src="th.jpg" alt="" /><p>已有账号</p><button id="login">去登录</button></div><div class="con-box right"><img src="th.jpg" alt="" /><p>没有账号？</p><button id="register">去注册</button></div></div><script>// 要操作到的元素let login = document.getElementById("login");let register = document.getElementById("register");let form_box = document.getElementsByClassName("form-box")[0];let register_box = document.getElementsByClassName("register-box")[0];let login_box = document.getElementsByClassName("login-box")[0];// 去注册按钮点击事件register.addEventListener("click", () => {form_box.style.transform = "translateX(80%)";login_box.classList.add("hidden");register_box.classList.remove("hidden");});// 去登录按钮点击事件login.addEventListener("click", () => {form_box.style.transform = "translateX(0%)";register_box.classList.add("hidden");login_box.classList.remove("hidden");});</script></body>
</html>
