Login Page
Login
if(isset($_GET['error'])) {
echo $_GET['error'];
}
?>
The code above is a basic HTML login page. Let's go through it step by step:
1. The doctype declaration is specified at the very beginning: ``. This specifies that the document conforms to the HTML5 standard.
2. The `` element encloses the entire HTML document.
3. The `
` section contains metadata and links to external resources. In this case
the page title is set to "Login Page" using the `
` element. The CSS styles for the login form are defined within a `<style>` block.</p><p> </p><p>4. The `<body>` section is where the content of the webpage is placed.</p><p> </p><p>5. Inside the `<body>` section</p><p> we have a `<div>` element with the class "container". This div is used to center the login form and give it a white background with some padding and border radius.</p><p> </p><p>6. The `<h2>` element displays the heading "Login".</p><p> </p><p>7. Inside the container div</p><p> we have a `<form>` element. The action attribute specifies the URL of the server-side script to process the form data. In this case</p><p> it is set to "login.php". The method attribute is set to "post"</p><p> which means the form data will be sent using HTTP POST.</p><p> </p><p>8. Inside the form</p><p> there are two `<input>` elements. One for the username and one for the password. The `type` attribute is set to "text" and "password" respectively. The `name` attribute is used to identify the form fields when the form is submitted.</p><p> </p><p>9. The `<button>` element is used to create a submit button. The `type` attribute is set to "submit". The text inside the button is set to "Login".</p><p> </p><p>10. After the form</p><p> there is a `<div>` element with the class "error". This is used to display any error messages that might occur during the login process. The PHP code inside the `<?php ?>` tags checks if there is an error message in the URL query string (added by the server-side script) and displays it if present.</p><p> </p><p>That's the basic structure of the HTML login page code. You can customize it further according to your requirements</p><p> add validation</p><p> and connect it to a backend script to handle the login functionality.</p></div> <div class="page-news-con__detail-disclaimer" data-v-34c1dc1a>
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html\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Chtml\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Chead\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Ctitle\u003ELogin Page\u003C\u002Ftitle\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Cstyle\u003E\u003C\u002Fp\u003E\u003Cp\u003Ebody {\u003C\u002Fp\u003E\u003Cp\u003E background-color: #f0f0f0;\u003C\u002Fp\u003E\u003Cp\u003E font-family: Arial\u003C\u002Fp\u003E\u003Cp\u003E sans-serif;\u003C\u002Fp\u003E\u003Cp\u003E}\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E.container {\u003C\u002Fp\u003E\u003Cp\u003E width: 400px;\u003C\u002Fp\u003E\u003Cp\u003E margin: 0 auto;\u003C\u002Fp\u003E\u003Cp\u003E margin-top: 100px;\u003C\u002Fp\u003E\u003Cp\u003E background-color: #fff;\u003C\u002Fp\u003E\u003Cp\u003E padding: 20px;\u003C\u002Fp\u003E\u003Cp\u003E border-radius: 5px;\u003C\u002Fp\u003E\u003Cp\u003E}\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003Eh2 {\u003C\u002Fp\u003E\u003Cp\u003E text-align: center;\u003C\u002Fp\u003E\u003Cp\u003E margin-bottom: 20px;\u003C\u002Fp\u003E\u003Cp\u003E}\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003Einput[type=\"text\"]\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003Einput[type=\"password\"] {\u003C\u002Fp\u003E\u003Cp\u003E width: *;\u003C\u002Fp\u003E\u003Cp\u003E padding: 12px;\u003C\u002Fp\u003E\u003Cp\u003E border: 1px solid #ccc;\u003C\u002Fp\u003E\u003Cp\u003E border-radius: 4px;\u003C\u002Fp\u003E\u003Cp\u003E box-sizing: border-box;\u003C\u002Fp\u003E\u003Cp\u003E margin-bottom: 15px;\u003C\u002Fp\u003E\u003Cp\u003E}\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003Ebutton[type=\"submit\"] {\u003C\u002Fp\u003E\u003Cp\u003E background-color: #4CAF50;\u003C\u002Fp\u003E\u003Cp\u003E color: #fff;\u003C\u002Fp\u003E\u003Cp\u003E padding: 12px 20px;\u003C\u002Fp\u003E\u003Cp\u003E border: none;\u003C\u002Fp\u003E\u003Cp\u003E border-radius: 4px;\u003C\u002Fp\u003E\u003Cp\u003E cursor: pointer;\u003C\u002Fp\u003E\u003Cp\u003E width: *;\u003C\u002Fp\u003E\u003Cp\u003E}\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003Ebutton[type=\"submit\"]:hover {\u003C\u002Fp\u003E\u003Cp\u003E background-color: #45a049;\u003C\u002Fp\u003E\u003Cp\u003E}\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E.error {\u003C\u002Fp\u003E\u003Cp\u003E color: red;\u003C\u002Fp\u003E\u003Cp\u003E margin-bottom: 15px;\u003C\u002Fp\u003E\u003Cp\u003E}\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E\u003C\u002Fstyle\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003C\u002Fhead\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003Cbody\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003Cdiv class=\"container\"\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003Ch2\u003ELogin\u003C\u002Fh2\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003Cform action=\"login.php\" method=\"post\"\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003Cinput type=\"text\" name=\"username\" placeholder=\"Username\" required\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003Cinput type=\"password\" name=\"password\" placeholder=\"Password\" required\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003Cbutton type=\"submit\"\u003ELogin\u003C\u002Fbutton\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fform\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003Cdiv class=\"error\"\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003C?php\u003C\u002Fp\u003E\u003Cp\u003E if(isset($_GET['error'])) {\u003C\u002Fp\u003E\u003Cp\u003E echo $_GET['error'];\u003C\u002Fp\u003E\u003Cp\u003E }\u003C\u002Fp\u003E\u003Cp\u003E ?\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fdiv\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fdiv\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003C\u002Fbody\u003E\u003C\u002Fp\u003E\u003Cp\u003E\u003C\u002Fhtml\u003E\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003EThe code above is a basic HTML login page. Let's go through it step by step:\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E1. The doctype declaration is specified at the very beginning: `\u003C!DOCTYPE html\u003E`. This specifies that the document conforms to the HTML5 standard.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E2. The `\u003Chtml\u003E` element encloses the entire HTML document.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E3. The `\u003Chead\u003E` section contains metadata and links to external resources. In this case\u003C\u002Fp\u003E\u003Cp\u003E the page title is set to \"Login Page\" using the `\u003Ctitle\u003E` element. The CSS styles for the login form are defined within a `\u003Cstyle\u003E` block.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E4. The `\u003Cbody\u003E` section is where the content of the webpage is placed.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E5. Inside the `\u003Cbody\u003E` section\u003C\u002Fp\u003E\u003Cp\u003E we have a `\u003Cdiv\u003E` element with the class \"container\". This div is used to center the login form and give it a white background with some padding and border radius.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E6. The `\u003Ch2\u003E` element displays the heading \"Login\".\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E7. Inside the container div\u003C\u002Fp\u003E\u003Cp\u003E we have a `\u003Cform\u003E` element. The action attribute specifies the URL of the server-side script to process the form data. In this case\u003C\u002Fp\u003E\u003Cp\u003E it is set to \"login.php\". The method attribute is set to \"post\"\u003C\u002Fp\u003E\u003Cp\u003E which means the form data will be sent using HTTP POST.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E8. Inside the form\u003C\u002Fp\u003E\u003Cp\u003E there are two `\u003Cinput\u003E` elements. One for the username and one for the password. The `type` attribute is set to \"text\" and \"password\" respectively. The `name` attribute is used to identify the form fields when the form is submitted.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E9. The `\u003Cbutton\u003E` element is used to create a submit button. The `type` attribute is set to \"submit\". The text inside the button is set to \"Login\".\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003E10. After the form\u003C\u002Fp\u003E\u003Cp\u003E there is a `\u003Cdiv\u003E` element with the class \"error\". This is used to display any error messages that might occur during the login process. The PHP code inside the `\u003C?php ?\u003E` tags checks if there is an error message in the URL query string (added by the server-side script) and displays it if present.\u003C\u002Fp\u003E\u003Cp\u003E \u003C\u002Fp\u003E\u003Cp\u003EThat's the basic structure of the HTML login page code. You can customize it further according to your requirements\u003C\u002Fp\u003E\u003Cp\u003E add validation\u003C\u002Fp\u003E\u003Cp\u003E and connect it to a backend script to handle the login functionality.\u003C\u002Fp\u003E",seo_title:a,seo_description:s,created_at:"2023-12-08 08:29:29",updated_at:"2026-01-02 16:01:56",cate:{id:h,name:m,slug:n,img:a,sort_order:d,summary:a,seo_title:a,seo_description:a,_lft:g,_rgt:c,parent_id:c,created_at:o,updated_at:p},tags:[],prev:{id:20809,name:"html按钮代码怎么写",slug:"20809"},next:{id:20812,name:"格式化html",slug:"20812"}},seo:{title:"html登录页面代码-三千云建站",keywords:"",description:s},related:[]},tags:[{tag_id:5334,name:i,type:b,normalized:i,created_at:e,updated_at:j},{tag_id:5340,name:t,type:b,normalized:t,created_at:e,updated_at:j},{tag_id:5338,name:u,type:b,normalized:u,created_at:e,updated_at:v},{tag_id:5339,name:w,type:b,normalized:w,created_at:e,updated_at:x},{tag_id:5335,name:y,type:b,normalized:y,created_at:e,updated_at:j},{tag_id:5336,name:z,type:b,normalized:z,created_at:e,updated_at:v},{tag_id:5333,name:A,type:b,normalized:A,created_at:e,updated_at:x},{tag_id:5337,name:B,type:b,normalized:B,created_at:e,updated_at:"2025-07-27 00:34:44"}]}],fetch:{},error:a,state:{userInfo:{},chatStatus:false},serverRendered:true,routePath:"\u002Fnews\u002F13\u002F20811",config:{_app:{basePath:C,assetsPath:C,cdnURL:"\u002F\u002Fstatic.3000.cn\u002Fassets\u002Fweb\u002Fclient\u002F"}}}}(null,2,5,1,"2025-07-08 08:51:42",0,4,13,"网站建设","2025-07-27 00:36:28",3,14,"网站建设知识","13","2023-08-05 08:35:15","2025-06-20 08:04:29",6,"专注建站,网站建设方案,专业化定制思维,人性化交互体验,后台功能简单易操作,高效执行项目,完善的流程体系,为您打造优质的互联网企业形象。","Login Pagebody { background-color: #f0f0f0; font-family: Arial sans-serif;}.container { width: 400px; margin: 0 auto; margin-top: 100px; background-color: #fff; padding: 20px; border-radius: 5...","模板网站","自助建站","2025-07-27 00:35:14","网站开发","2025-07-27 00:35:53","网站制作","营销型网站","网页设计","自适应网站","\u002F"));</script><script src="//static.3000.cn/assets/web/client/b667311.js" defer></script><script src="//static.3000.cn/assets/web/client/608f983.js" defer></script><script src="//static.3000.cn/assets/web/client/5bc97b7.js" defer></script><script src="//static.3000.cn/assets/web/client/2ebbb7f.js" defer></script><script src="//static.3000.cn/assets/web/client/c2fc44d.js" defer></script>
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