


HTML, CSS and jQuery: Build a beautiful login and registration interface
As web developers, we often need to build user login and registration interfaces. A beautiful, user-friendly login and registration interface is crucial to improving user experience and website image. In this article, we will use HTML, CSS and jQuery to build a beautiful login registration interface and provide specific code examples.
First, we need to create an HTML document and define two forms for login and registration. We can build these two forms using form elements and some input fields. The following is a simple example:
<!DOCTYPE html> <html> <head> <link rel="stylesheet" href="style.css"> </head> <body> <div class="container"> <h1 id="Login">Login</h1> <form id="loginForm"> <input type="text" placeholder="Username"> <input type="password" placeholder="Password"> <button type="submit">Login</button> </form> <h1 id="Register">Register</h1> <form id="registerForm"> <input type="text" placeholder="Username"> <input type="password" placeholder="Password"> <input type="password" placeholder="Confirm Password"> <button type="submit">Register</button> </form> </div> <script src="jquery.min.js"></script> <script src="script.js"></script> </body> </html>
Next, we create a CSS file to beautify our login registration interface. We can use CSS to define style, layout and animation effects. Here is a simple example:
.container { width: 400px; margin: 0 auto; text-align: center; } form { margin-top: 20px; } h1 { margin-bottom: 10px; } button { padding: 10px 20px; background-color: #4CAF50; color: white; border: none; cursor: pointer; } button:hover { opacity: 0.8; } input { margin-bottom: 10px; padding: 10px; width: 100%; }
Now, we need to use jQuery to add some interactive effects and validation functionality. We can use jQuery's event handlers and selectors to achieve these functions. The following is a simple example:
$(document).ready(function() { $("#loginForm").submit(function(e) { e.preventDefault(); // 阻止表单提交的默认行为 // 获取输入的用户名和密码 var username = $("#loginForm input[type='text']").val(); var password = $("#loginForm input[type='password']").val(); // 在这里添加登录验证的逻辑 // ... // 清空输入字段 $("#loginForm input").val(""); }); $("#registerForm").submit(function(e) { e.preventDefault(); // 阻止表单提交的默认行为 // 获取输入的用户名、密码和确认密码 var username = $("#registerForm input[type='text']").val(); var password = $("#registerForm input[type='password']").val(); var confirmPassword = $("#registerForm input[type='password']:last").val(); // 在这里添加注册验证的逻辑 // ... // 清空输入字段 $("#registerForm input").val(""); }); });
In the above code, we use the submit() event and preventDefault() method to prevent the form's default submission behavior. Then, we use the selector and val() method to get the input value in the form. Next, we can add validation logic and other custom functionality to these two event handlers.
Finally, we need to bring in jQuery and our CSS file and add the corresponding link in the HTML. We can introduce jQuery by downloading the jQuery library from the jQuery official website and saving it in the project.
With the above code examples of HTML, CSS and jQuery, we can build a beautiful, user-friendly login and registration interface, and add interactive effects and verification functions. This will provide users with a good experience while also improving the image and usability of the website.
It should be noted that the above example is just a simple beginning and you can expand and customize it according to your own needs. I hope this article will help you build a beautiful login and registration interface!
The above is the detailed content of HTML, CSS and jQuery: Build a beautiful login and registration interface. For more information, please follow other related articles on the PHP Chinese website!

实现方法:1、用“$("img").delay(毫秒数).fadeOut()”语句,delay()设置延迟秒数;2、用“setTimeout(function(){ $("img").hide(); },毫秒值);”语句,通过定时器来延迟。

修改方法:1、用css()设置新样式,语法“$(元素).css("min-height","新值")”;2、用attr(),通过设置style属性来添加新样式,语法“$(元素).attr("style","min-height:新值")”。

区别:1、axios是一个异步请求框架,用于封装底层的XMLHttpRequest,而jquery是一个JavaScript库,只是顺便封装了dom操作;2、axios是基于承诺对象的,可以用承诺对象中的方法,而jquery不基于承诺对象。

增加元素的方法:1、用append(),语法“$("body").append(新元素)”,可向body内部的末尾处增加元素;2、用prepend(),语法“$("body").prepend(新元素)”,可向body内部的开始处增加元素。

在jquery中,apply()方法用于改变this指向,使用另一个对象替换当前对象,是应用某一对象的一个方法,语法为“apply(thisobj,[argarray])”;参数argarray表示的是以数组的形式进行传递。

删除方法:1、用empty(),语法“$("div").empty();”,可删除所有子节点和内容;2、用children()和remove(),语法“$("div").children().remove();”,只删除子元素,不删除内容。

去掉方法:1、用“$(selector).removeAttr("readonly")”语句删除readonly属性;2、用“$(selector).attr("readonly",false)”将readonly属性的值设置为false。

on()方法有4个参数:1、第一个参数不可省略,规定要从被选元素添加的一个或多个事件或命名空间;2、第二个参数可省略,规定元素的事件处理程序;3、第三个参数可省略,规定传递到函数的额外数据;4、第四个参数可省略,规定当事件发生时运行的函数。


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