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- How to create a full-screen landing page with HTML and CSS?
- To create a full-screen landing page, you need to use HTML and CSS to combine viewport units and layout techniques. 1. Set the HTML structure and include viewport meta tags to adapt to mobile devices; 2. Use height:100vh to make the container occupy the full viewport height; 3. Use Flexbox to achieve vertical and horizontal centering of the content; 4. Use background-size:cover and background-position:center to ensure responsive display when adding background images; 5. Optimize the scrolling experience through scroll-behavior or JavaScript to ensure normal display and smooth interaction.
- HTML Tutorial . Web Front-end 907 2025-07-07 01:56:02
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- How to make form input fields mandatory using html attributes?
- The most direct way to make the input box in the HTML form required is to use the required property. This property is a Boolean type, and no value is required. It can be used to verify it on the input, select or textarea tags, such as:; Common matching types include text, email, password, etc.; for checkbox, directly add required to force check; in the radio button group, just add required to the first option; the select drop-down box needs to set the default empty value option to trigger verification; different browsers may have different styles and contents of prompt information. If a unified prompt effect is required, you can customize it with JavaScript or third-party libraries for customization.
- HTML Tutorial . Web Front-end 771 2025-07-07 01:50:31
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- What is the HTML DOM (Document Object Model)
- DOM is a structured object model that the browser parses HTML files into. Through a tree structure, JavaScript can dynamically manipulate page content, structure and style. It corresponds to HTML tags in the form of nodes, such as element nodes and text nodes. JavaScript implements interactive operations through the API provided by DOM, such as: 1. Get elements (such as document.getElementById); 2. Modify content (such as textContent); 3. Add or delete nodes (such as createElement and appendChild); 4. Listen to events (such as clicks and inputs). The dynamic nature of DOM enables web pages to respond to user behavior in real time, and is the core of front-end development.
- HTML Tutorial . Web Front-end 751 2025-07-07 01:49:01
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- How to create ordered and unordered lists in HTML
- The methods of creating ordered lists and unordered lists in HTML are as follows: 1. Use tags to create ordered lists, suitable for content with order or priority, as described in the step, numbered by default; 2. Use tags to create unordered lists, suitable for content with parallel unordered content, such as navigation menus, marked with dots by default; 3. Lists can be used in nested, and are often used for directory navigation by inserting new or multi-level structures in them. Each list item must be wrapped in a tag, and combined with CSS can achieve rich styles and layouts.
- HTML Tutorial . Web Front-end 388 2025-07-07 01:27:31
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- How does the html document outline algorithm work with sectioning elements?
- ThekeysectioningelementsinHTMLthatcontributetothedocumentoutlineare,,,and;eachcreatesanewsectionorsubsectionintheoutlinewhenusedwithheadings.1)Theoutlinealgorithmusesnestingoftheseelementstodeterminehierarchy,notheadinglevels—aheadinginsideasectionde
- HTML Tutorial . Web Front-end 143 2025-07-07 01:09:32
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- How to add icons (like Font Awesome) to an HTML page?
- To add FontAwesome icon to an HTML page, first introduce resources through CDN. The method is to add 1. Find the desired icon and copy its HTML code before or, for example; 2. The icon is often used to enhance visual recognition, such as saving, 3. You can resize fa-lg and fa-2x and control the color with CSS; 4. If you need to deploy locally, you can download and configure it manually, but in most cases, CDN is recommended.
- HTML Tutorial . Web Front-end 989 2025-07-07 00:52:51
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- How to validate the syntax and structure of an html file?
- Verifying HTML files allows you to ensure syntax specifications through online tools, local integration tools, and manual inspection. 1. Use W3CMarkupValidationService and other online tools to quickly detect errors and locate line numbers; 2. Install HTMLHint, SublimeLinter and other plug-ins in VSCode or SublimeText to achieve real-time verification during writing; 3. Manually check whether the basic structure is complete, such as whether , , is correctly nested, whether the tag is closed, and whether the attribute value is quoted; 4. Pay attention to the ID uniqueness, block-level and inline element nesting rules, and DOCTYPE declarations, etc., to avoid layout exceptions and browser compatibility issues.
- HTML Tutorial . Web Front-end 794 2025-07-07 00:49:32
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- How to validate an HTML document?
- Verifying HTML documents is to check whether their structure and syntax meets standards and ensure that there are no problems such as spelling errors, unclosed tags or nested errors. 1. You can use W3C and other online verification tools to enter the URL, upload files or paste code for checking; 2. Use VSCode and other editors to install plug-ins (such as HTMLHint) to achieve real-time verification and automatically fix some errors; 3. Pay attention to common problems such as unclosed tags, unquoted attribute values, wrong use of self-closed tags and irregular nesting, etc., and maintain good coding habits to improve compatibility and SEO effects.
- HTML Tutorial . Web Front-end 201 2025-07-07 00:47:12
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- HTML project ideas for beginners
- Personal profile web page: You can practice the basic HTML structure, title, paragraph, list, pictures, links and navigation bar elements; 2. Recipe display page: It is suitable to organize content with title, paragraph, ordered and unordered lists, and insert pictures and external links; 3. Imitate the static website structure: understand the page organization method by copying the layout of your favorite website, focusing on label functions rather than styles. These three projects range from easy to difficult, and combining interest can effectively improve HTML practical ability.
- HTML Tutorial . Web Front-end 384 2025-07-07 00:45:32
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- Distinguishing Between GET and POST Methods in HTML Form Submission
- The core difference between GET and POST lies in the data transmission method and applicable scenarios. 1. Different data transmission methods: GET passes data through URL query strings, exposed to the address bar, suitable for non-sensitive information; POST places data in the request body, hides and does not display, suitable for sensitive or complex data. 2. Data length limit: GET is limited by URL length (usually about 2048 characters). POST has no such limit, which is suitable for large data transmission. 3. Caching and bookmark behavior: GET requests can be cached and bookmarked, suitable for search and other scenarios that need to be shared; POST does not cache by default and is not suitable for bookmarks, suitable for submission of orders and other operations, avoiding the risk of repeated submissions. 4. Security differences: GET data is easily logged, historical records or
- HTML Tutorial . Web Front-end 930 2025-07-07 00:44:12
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- How does the srcset attribute help with responsive images in html?
- srcset is an attribute of tags in HTML that defines multiple image sources, allowing the browser to select the most appropriate image based on the device's screen size and resolution. 1. It improves page loading speed and user experience, avoiding unnecessary large image downloads or blurred displays. 2. Use the w descriptor to specify the image width. Combined with the sizes attribute, the browser can select the best image according to the layout width. 3. A pixel density descriptor such as 2x can be used to provide a clearer image for high-resolution screens. 4. When using it, src should be included as a fallback, and ensure that the image size is accurate and optimized well. Cross-device testing should be carried out to ensure the effect.
- HTML Tutorial . Web Front-end 686 2025-07-07 00:26:02
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- How to comment in HTML code
- The way to add comments in HTML is to use syntax to wrap the text, which the browser ignores but keeps in the source code. 1. Use package comment content, such as; 2. Comments should explain the purpose concisely and concisely to avoid redundant descriptions; 3. Support multi-line comments, but comment tags must always be used in pairs; 4. Commonly used in scenarios such as marking blocks, temporary blocking codes, and explaining functional logic; 5. Be careful not to nest comments, the labels must be closed correctly, and special character conflicts must be avoided to prevent parsing errors.
- HTML Tutorial . Web Front-end 693 2025-07-07 00:19:21
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- How to create a range slider in HTML?
- To create a scope slider, use HTML tags. 1. Set the min and max attributes to define the numerical range; 2. Use value to specify the initial value; 3. Use step to control the step length to limit the optional numerical interval; 4. Use scale marks to improve visual interaction; 5. Use JavaScript to obtain and respond to changes in slider values, and often use input or change events to listen to user operations; 6. Pay attention to practical application issues such as mobile compatibility, barrier-free support and custom styles.
- HTML Tutorial . Web Front-end 715 2025-07-06 02:22:01
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- How to add a background image in HTML?
- The key to adding background images in HTML is to use CSS properties. 1. Set the background image through the background-image attribute of CSS, which can be written in a tag or an external CSS file; 2. Common configurations include background-repeat to control duplication, background-size to control size to adapt to the screen; 3. The path needs to be correct, support common formats such as .jpg and .png, and pay attention to loading speed; 4. You can add background image for specific elements such as div, just modify the selector to the corresponding class or id; 5. The inline style is suitable for temporary testing, but it is not recommended for formal projects to avoid affecting maintenance.
- HTML Tutorial . Web Front-end 666 2025-07-06 02:21:02
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