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  • Understanding the HTML `code` Element for Programming Code
    Understanding the HTML `code` Element for Programming Code
    Using elements can improve the readability and semanticity of code in web pages. Used to display code snippets, usually displayed in monospace fonts and retained whitespace characters, suitable for short code snippets rather than whole code; if multiple lines of code are required to be displayed, they should be nested within the tag. The default style is relatively simple. It is recommended to add background, margin and other styles through CSS. At the same time, you need to pay attention to avoid incorrect use, such as not displaying large pieces of code, mistakenly using non-code content, and not escaping special characters.
    HTML Tutorial . Web Front-end 869 2025-07-23 00:12:01
  • HTML `template` Tag for Client-Side Templating
    HTML `template` Tag for Client-Side Templating
    Using HTML template tags as client templates is a lightweight, dependency-free dynamic content insertion scheme. 1. template is a lazy container introduced by HTML5, and the internal content will not be parsed or rendered; 2. Get and clone its content through JavaScript, fill in the data and insert it into the DOM, which is suitable for repeated structures such as user lists; 3. When using it, scripts, styles and data bindings need to be processed manually; 4. It is suitable for small projects or low-complexity components, while large projects are recommended to use frameworks such as React/Vue instead.
    HTML Tutorial . Web Front-end 903 2025-07-23 00:05:42
  • Designing Web Forms with HTML
    Designing Web Forms with HTML
    When designing a web form, you need to pay attention to four key points: structure, input type, verification and submission. 1. Use tags to wrap the form, specify action and method attributes, and use the matching to clarify the input items; 2. Select HTML5 input types such as text, email, password, etc. according to the needs to reduce errors; 3. Add verification on the front end such as required, minlength, and pattern to assist users in the correct input; 4. Place the submission button at the bottom to uniformly layout to avoid excessive content affecting the experience.
    HTML Tutorial . Web Front-end 258 2025-07-23 00:03:02
  • The `formmethod` Attribute in HTML Forms
    The `formmethod` Attribute in HTML Forms
    Formmethod is an attribute used in HTML forms to specify the submission method. 1. It can be added on and overridden method attributes; 2. It is suitable for scenarios where request methods need to be flexibly controlled, such as search GET and deletion POST; 3. It is only valid and generally does not support it; 4. Pay attention to priority issues when using it. The formmethod of the button is higher than the method of the form.
    HTML Tutorial . Web Front-end 271 2025-07-22 03:20:07
  • Creating Print-Friendly HTML Pages
    Creating Print-Friendly HTML Pages
    To make a web page suitable for printing, you need to hide unnecessary elements, adjust the layout, and optimize the font color. 1. Use the @mediaprint rule to hide the navigation bar, sidebar and ads, and retain the main content; 2. Set a fixed width and single-column layout to avoid floating and fixed positioning; 3. Set the font size to 12pt, and use black text and white background to improve readability; 4. Add URL brackets to the link to display the source to ensure that the link address can still be recognized after printing. These CSS printing style optimizations can significantly improve the web printing effect.
    HTML Tutorial . Web Front-end 606 2025-07-22 03:16:12
  • HTML `draggable` Attribute for Drag and Drop
    HTML `draggable` Attribute for Drag and Drop
    To make elements draggable, you need to set the draggable attribute, 1. The default draggable elements include pictures, links and selected text; 2. Other elements such as div need to be set manually to true; 3. To achieve complete functions in conjunction with JavaScript drag and drop events; 4. Pay attention to mobile support and barrier-free issues.
    HTML Tutorial . Web Front-end 683 2025-07-22 03:14:22
  • Using HTML for Accessibility: ARIA Attributes
    Using HTML for Accessibility: ARIA Attributes
    ARIA attributes help screen reader users better navigate and understand web content by supplementing HTML accessibility flaws. 1.ARIA is a set of attributes used to make dynamic content and complex UI controls accessible, such as using role="menu" and aria-haspopup="true" to identify custom drop-down menus; 2. Common roles include role="navigation", role="button" and role="dialog", common states such as aria-expanded and aria-la
    HTML Tutorial . Web Front-end 822 2025-07-22 03:14:02
  • The `command` Element (Deprecated HTML5)
    The `command` Element (Deprecated HTML5)
    It is an abandoned tag in HTML that was originally used to define command buttons or menu items, such as the operation options in the right-click menu. It is often used with and contextmenu properties, but is now abandoned by HTML5 due to poor compatibility, fuzzy semantics and better alternatives (such as JavaScript or front-end frameworks). 1. Alternative solutions include: 2. Use or combine elements with CSS and JavaScript; 3. Use JavaScript to dynamically generate menus; 4. Use UI framework to implement interactive components. Therefore, use should be avoided in modern development to ensure better compatibility and maintainability.
    HTML Tutorial . Web Front-end 350 2025-07-22 03:08:02
  • HTML `iframe` `loading='lazy'` for Performance
    HTML `iframe` `loading='lazy'` for Performance
    Use loading="lazy" to delay loading non-core content such as this, thereby improving web page performance. The specific method is to add loading="lazy" attribute and set the width and height to avoid layout jitter; it is suitable for embedding maps, advertisements, videos at the bottom of the page, and foldable areas. It is necessary to pay attention to compatibility issues. Some old browsers do not support it. Search engines may not be able to crawl lazy loading content in SEO, and users need to optimize their experience when loading, such as adding loading prompts.
    HTML Tutorial . Web Front-end 548 2025-07-22 03:03:23
  • Using the HTML `track` Tag for Media Subtitles
    Using the HTML `track` Tag for Media Subtitles
    To add subtitles or descriptions using tags in HTML, you must first link an external WebVTT (.vtt) file within or within the tag and specify its type, language and user tags; 1. Use the src attribute to specify the .vtt file path; 2. The kind attribute defines the track type, such as subtitles, captions, etc.; 3. Srclang specifies the language; 4. Label is the name displayed on the user interface; 5. Multiple elements can be added to support multilingual or different types of tracks; 6. Create a correctly formatted .vtt file, containing timestamps and text content; 7. You can set the default track through the default attribute, use CSS pseudo-element::cue for style customization, and ensure cross-domain requests
    HTML Tutorial . Web Front-end 635 2025-07-22 03:02:08
  • HTML `strong` vs. `b` Tag for Importance
    HTML `strong` vs. `b` Tag for Importance
    The main difference between the simultaneous is semantics: it means that the content is important, suitable for emphasis, warning and other scenarios, and can improve accessibility and SEO; it is only used for visual bolding, without semantic meaning. For example, prompt information and error prompts are suitable for use, while product names, role names, etc. are suitable for use in occasions where only highlights are required. When selecting a tag, you should judge based on the intention: emphasize content selection and pure style selection.
    HTML Tutorial . Web Front-end 182 2025-07-22 03:00:04
  • Timed Elements using HTML `time`
    Timed Elements using HTML `time`
    Tags are semantic tags introduced by HTML5 to mark time or dates, enhancing SEO, accessibility, and structured data. 1. It provides machine-readable time formats through the datetime attribute, such as 2024-04-05 or 2024-04-05T14:30:00 with time zone 08:00; 2. Supports multiple time types, including date, timestamp, time only, time zone time and duration; 3. When used in actual use, standard formats, international time zones and structured data (such as Schema.org) should be combined to improve information recognition.
    HTML Tutorial . Web Front-end 477 2025-07-22 02:47:52
  • Best Practices for HTML Validation
    Best Practices for HTML Validation
    HTML verification not only makes the code neat, but also is a key step to ensure that websites are cross-browser compatibility, load faster and improve accessibility. 1. Use W3CMarkupValidationService and other online tools to verify HTML, support code pasting, file upload or URL input, and can detect syntax errors and warnings. 2. During verification, you need to ensure that the DOCTYPE declaration is correct, the label closing nesting specifications are standardized, and the new elements are used correctly. 3. For large websites or static site generators, HTML verification can be integrated into the build process and automatically checked through tools such as HTMLHint or eslint-plugin-html. 4. Set code specification rules, such as indentation, label case and attribute order,
    HTML Tutorial . Web Front-end 371 2025-07-22 02:40:42
  • HTML `aside` for Sidebar Content
    HTML `aside` for Sidebar Content
    The aside tag is suitable for building web page sidebars. 1.aside is an HTML5 semantic tag that represents auxiliary content related to the main content but can exist independently; 2. It is often used in sidebars, recommended reading, author profile, advertising and other scenarios; 3. It should cooperate with main when used, and implement structure through Flexbox or Grid layout; 4. Pay attention to semantic rationality to avoid abuse and error nesting; 5. Accessibility support should be enhanced and responsive design adaptation should be considered.
    HTML Tutorial . Web Front-end 905 2025-07-22 02:39:02

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