国产av日韩一区二区三区精品,成人性爱视频在线观看,国产,欧美,日韩,一区,www.成色av久久成人,2222eeee成人天堂

current location：Home > Technical Articles > Daily Programming > HTML Knowledge

  • Understanding HTML `base` Tag for Base URL
    Understanding HTML `base` Tag for Base URL
    Tags are used to uniformly manage references to all relative paths in a webpage. 1. It is usually placed in, specifying the underlying URL through href, affecting the parsing of all relative path resources on the page. 2. You can use the target attribute to uniformly control the link opening method, such as \_blank or \_self. 3. Commonly used to unify resource prefixes, avoid path confusion, and control link behavior. 4. Notes include: only effective for relative URLs, cannot be covered locally, and have a wide range of impacts. They need to be used in a standardized manner in the early stage of the project to prevent maintenance difficulties.
    HTML Tutorial . Web Front-end 926 2025-07-21 03:20:32
  • HTML `th` and `td` Explained: Table Header vs. Data Cell
    HTML `th` and `td` Explained: Table Header vs. Data Cell
    ThedifferencebetweenthandtdinHTMLtablesliesintheirsemanticroles:thdefinesheadercells,whiletddefinesstandarddatacells.1.thlabelscolumnsorrows(e.g.,"Name,""Age")andisstyledboldandcenteredbydefault;italsoimprovesaccessibilitybyhelpin
    HTML Tutorial . Web Front-end 824 2025-07-21 03:05:51
  • The `sandbox` Attribute for HTML Iframes
    The `sandbox` Attribute for HTML Iframes
    The sandbox attribute is a tool in HTML for enhanced security, preventing potential attacks by limiting the behavior of embedded content. It prohibits JavaScript execution, submitting forms, pop-up new windows, and accessing parent page DOM or cookies by default; when using it, you can open permissions as needed by adding allow-same-origin, allow-scripts and other parameters. Common application scenarios include embedding user content, display ads, online code demonstrations, and protecting privacy data. Notes include not relying on it as the only line of defense, permissions should be strictly controlled, and browser compatibility and behavioral impacts should be paid attention to.
    HTML Tutorial . Web Front-end 232 2025-07-21 03:04:31
  • HTML `picture` Element for Art Direction
    HTML `picture` Element for Art Direction
    The picture element is used in ArtDirection scenarios in responsive web design, and pictures with different compositions are displayed according to different devices. 1. It is implemented by including multiple sources and an img element. The browser selects the appropriate picture according to the media attributes; 2. The desktop can display wide pictures, the tablet can use cropped pictures, and the mobile terminal can be a vertical close-up; 3. When using it, please note that the source order and number are controlled between 2 and 3, and the image format such as WebP can be specified; 4. The img tag is the necessary default fallback option.
    HTML Tutorial . Web Front-end 535 2025-07-21 02:59:51
  • HTML `wbr` for Word Breaks
    HTML `wbr` for Word Breaks
    The wbr tag is used to specify optional line breaking locations in HTML to solve the typesetting problems caused by long words or URLs. 1. It is different from the br tag. It does not force a line break, but the browser decides whether to break the line here based on the container width. 2. Common usage scenarios include long variable names, database field names and URLs, such as superLongVariableNameThatDoesNotFit or https://www.example.com/very-long-page-name-with-no-hyphens. 3. The method of using is to insert at the position where the line break is allowed, for example https://www.example.com/ver
    HTML Tutorial . Web Front-end 922 2025-07-21 02:59:31
  • Microdata and Schema.org for HTML Markup
    Microdata and Schema.org for HTML Markup
    Microdata is an HTML specification, and Schema.org is a semantic dictionary. The combination of the two can improve SEO. 1. Microdata defines the content structure through item scope, item type, and itemprop attributes; 2. Schema.org provides standard vocabulary description content types, such as Article, Product, Organization; 3. Application scenarios include e-commerce products, company information, and article content tags; 4. Use Google's RichResultsTest tool to verify data accuracy. Rational use and regular inspection of structured data can improve search engine understanding and display effectiveness.
    HTML Tutorial . Web Front-end 995 2025-07-21 02:58:32
  • HTML `canvas` for Dynamic Graphics and Animations
    HTML `canvas` for Dynamic Graphics and Animations
    Canvas is HTML5's drawing API suitable for dynamic graphics and animations. 1. It is based on pixel operation and is efficient and suitable for games and visualization; 2. When using it, you need to first obtain the context to draw graphics, such as drawing rectangles, circles, etc.; 3. Animation is achieved by clearing the canvas, updating the status, and redrawing, and using requestAnimationFrame to control the frame rate; 4. Performance optimization includes reducing the redraw area, avoiding frequent creation of objects, and using off-screen canvas; 5. Interaction is achieved by listening to events and coordinate calculations, such as click detection. Mastering these key points allows you to create smooth and efficient animations.
    HTML Tutorial . Web Front-end 565 2025-07-21 02:53:32
  • The HTML `map` Tag and `area` for Image Maps
    The HTML `map` Tag and `area` for Image Maps
    imagemap is a technology that defines multiple clickable areas on images through HTML map and area tags. It is often used for static image interactions such as charts and diagrams. 1. Use the img tag with the usemap attribute to associate map elements; 2. Use multiple areas in the map tag to define hot spot areas, supporting rect, circle, and poly shapes; 3. Pay attention to the matching of the coords coordinate format and shape type, and ensure that the name is consistent with the usemap. When using it, you need to pay attention to responsive adaptation, accessibility and mobile compatibility issues, which are suitable for static content to quickly realize image area interaction.
    HTML Tutorial . Web Front-end 534 2025-07-21 02:53:02
  • Using `contenteditable` Attribute in HTML
    Using `contenteditable` Attribute in HTML
    The contenteditable property can realize web content editing through simple settings, and is suitable for scenarios such as rich text editors, comment areas, dynamic forms, etc. 1. When using it, just add contenteditable="true" to the HTML tag; 2. Support three values: "true", "false" and "plaintext-only"; 3. Commonly used in online documents, comment editing, collaborative whiteboards and other scenarios; 4. Pay attention to security, compatibility, cursor management and style confusion; 5. You can combine input or blur events to listen to content changes and deal with
    HTML Tutorial . Web Front-end 251 2025-07-21 02:45:02
  • Implementing HTML `charset` for Unicode Support
    Implementing HTML `charset` for Unicode Support
    To solve the problem of garbled web pages, you need to ensure that the HTML charset is set correctly. First, the HTML file itself must be saved as UTF-8 encoding, otherwise garbled code will appear even if it is written; secondly, it should be placed at the front of HTML to avoid parsing errors caused by browser guessing encoding; finally, the server also needs to configure the correct Content-Type, such as Apache adds AddDefaultCharsetUTF-8, and Nginx configures charsetf-8 to ensure that the character set declared in the HTTP header is consistent with the page, and avoid inconsistent encoding of the front and back ends causing garbled code.
    HTML Tutorial . Web Front-end 963 2025-07-21 02:40:52
  • What is an HTML linter and why is it useful?
    What is an HTML linter and why is it useful?
    HTMLlinter is a tool that checks the standardization of HTML code and discovers spelling errors and structural problems. It can find hidden errors, such as label spelling errors, property values are not quoted, use of outdated tags, etc., to avoid problems such as confusion in styles and degradation in SEO; 1. It can unify the team's code style and reduce maintenance costs; 2. It supports integration into the development process, such as VSCode plug-in or construction tool, to achieve automatic inspection, improve collaboration efficiency and code quality.
    HTML Tutorial . Web Front-end 723 2025-07-21 02:36:12
  • HTML `input` `autocomplete` Attribute for User Experience
    HTML `input` `autocomplete` Attribute for User Experience
    The autocomplete attribute is an attribute in HTML that controls whether the input box is enabled for automatic filling function. It can improve the user experience by using it reasonably. The basic usage is to set autocomplete="on" or autocomplete="off" in the input tag, and also supports keywords such as "email", "username", "address-line1" to help the browser more accurately identify the purpose of the field. Suitable scenarios include username, email, password fields on the login registration page; checkout or delivery address
    HTML Tutorial . Web Front-end 858 2025-07-21 02:32:22
  • Using HTML `hr` for Thematic Breaks
    Using HTML `hr` for Thematic Breaks
    Labels are used to represent the transformation of content themes, rather than simply drawing lines. Their function is to separate contents of different topics, such as theme conversion between paragraphs of articles, front and back separation of forms, semantic separation between blocks and improve accessibility; when used, the style should be modified through class and CSS to meet design needs, but abuse should be avoided. It should not be used as a layout spacing tool, but should be kept semantic clear.
    HTML Tutorial . Web Front-end 842 2025-07-21 02:31:01
  • The HTML `template` Tag: Reusable Content Blocks
    The HTML `template` Tag: Reusable Content Blocks
    TheHTMLtagallowsreuseofinertHTMLchunksuntilactivatedviaJavaScript.ItstoresHTMLcontentlikeelements,scripts,orstyleswithoutrenderingorexecutingthemuntilexplicitlyclonedandinsertedintotheDOM.1.UseitfordynamicUIcomponentslikelistsormodals.2.AvoiditforSEO
    HTML Tutorial . Web Front-end 209 2025-07-21 02:30:11

Tool Recommendations

jQuery enterprise message form contact code

jQuery enterprise message form contact code is a simple and practical enterprise message form and contact us introduction page code.
form button
2024-02-29

HTML5 MP3 music box playback effects

HTML5 MP3 music box playback special effect is an mp3 music player based on HTML5 css3 to create cute music box emoticons and click the switch button.

HTML5 cool particle animation navigation menu special effects

HTML5 cool particle animation navigation menu special effect is a special effect that changes color when the navigation menu is hovered by the mouse.
Menu navigation
2024-02-29

jQuery visual form drag and drop editing code

jQuery visual form drag and drop editing code is a visual form based on jQuery and bootstrap framework.
form button
2024-02-29

Organic fruit and vegetable supplier web template Bootstrap5

An organic fruit and vegetable supplier web template-Bootstrap5
Bootstrap template
2023-02-03

Bootstrap3 multifunctional data information background management responsive web page template-Novus

Bootstrap3 multifunctional data information background management responsive web page template-Novus
backend template
2023-02-02

Real estate resource service platform web page template Bootstrap5

Real estate resource service platform web page template Bootstrap5
Bootstrap template
2023-02-02

Simple resume information web template Bootstrap4

Simple resume information web template Bootstrap4
Bootstrap template
2023-02-02

Cute summer elements vector material (EPS PNG)

This is a cute summer element vector material, including the sun, sun hat, coconut tree, bikini, airplane, watermelon, ice cream, ice cream, cold drink, swimming ring, flip-flops, pineapple, conch, shell, starfish, crab, Lemons, sunscreen, sunglasses, etc., the materials are provided in EPS and PNG formats, including JPG previews.
PNG material
2024-05-09

Four red 2023 graduation badges vector material (AI EPS PNG)

This is a red 2023 graduation badge vector material, four in total, available in AI, EPS and PNG formats, including JPG preview.
PNG material
2024-02-29

Singing bird and cart filled with flowers design spring banner vector material (AI EPS)

This is a spring banner vector material designed with singing birds and a cart full of flowers. It is available in AI and EPS formats, including JPG preview.
banner picture
2024-02-29

Golden graduation cap vector material (EPS PNG)

This is a golden graduation cap vector material, available in EPS and PNG formats, including JPG preview.
PNG material
2024-02-27

Home Decor Cleaning and Repair Service Company Website Template

Home Decoration Cleaning and Maintenance Service Company Website Template is a website template download suitable for promotional websites that provide home decoration, cleaning, maintenance and other service organizations. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-05-09

Fresh color personal resume guide page template

Fresh color matching personal job application resume guide page template is a personal job search resume work display guide page web template download suitable for fresh color matching style. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-29

Designer Creative Job Resume Web Template

Designer Creative Job Resume Web Template is a downloadable web template for personal job resume display suitable for various designer positions. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28

Modern engineering construction company website template

The modern engineering and construction company website template is a downloadable website template suitable for promotion of the engineering and construction service industry. Tip: This template calls the Google font library, and the page may open slowly.
Front-end template
2024-02-28