current location：Home > Technical Articles > Daily Programming > HTML Knowledge
- Direction：
- All web3.0 Backend Development Web Front-end Database Operation and Maintenance Development Tools PHP Framework Daily Programming WeChat Applet Common Problem Other Tech CMS Tutorial Java System Tutorial Computer Tutorials Hardware Tutorial Mobile Tutorial Software Tutorial Mobile Game Tutorial
- Classify：
- PHP tutorial MySQL Tutorial HTML Tutorial CSS Tutorial
-
- Exploring the Shadow DOM Concept in Relation to HTML Structure
- ShadowDOM is a browser feature that allows developers to attach independent DOM trees to an element in the page, thereby achieving isolation of structure and style. 1. It prevents styles and scripts from conflicting by creating hidden subtrees; 2. Internal elements cannot be directly accessed or modified by external sources, encapsulation and maintainability of components; 3. Supports content projection and theme customization using and CSS variables; 4. Commonly used in WebComponents, third-party component libraries, and scenarios that require strong encapsulation; 5. Suitable for building reusable and non-interference to global UI components, but may not be necessary in small projects.
- HTML Tutorial . Web Front-end 478 2025-07-08 00:04:02
-
- How to add a video as a background in HTML?
- To add a video background to a web page, the key is to use HTML tags correctly and optimize relevant attributes. 1. Use tags as background and use CSS positioning to fill the page or local area; 2. The video format is preferred.mp4, and WebM is added to consider compatibility; 3. Add muted and playsinline attributes to ensure automatic playback on the mobile side; 4. Control the video size to optimize the loading speed, and it is recommended to keep it at tens of MB; 5. Add loops to achieve seamless loop playback; 6. It can be flexibly applied to full screen or local blocks, and different effects are achieved by adjusting the container size and positioning method. The above steps can achieve a stable and beautiful video background.
- HTML Tutorial . Web Front-end 874 2025-07-08 00:03:22
-
- Implementing Clickable Buttons Using the HTML button Element
- To use HTML button elements to achieve clickable buttons, you must first master its basic usage and common precautions. 1. Create buttons with tags and define behaviors through type attributes (such as button, submit, reset), which is submitted by default; 2. Add interactive functions through JavaScript, which can be written inline or bind event listeners through ID to improve maintenance; 3. Use CSS to customize styles, including background color, border, rounded corners and hover/active status effects to enhance user experience; 4. Pay attention to common problems: make sure that the disabled attribute is not enabled, JS events are correctly bound, layout occlusion, and use the help of developer tools to troubleshoot exceptions. Master this
- HTML Tutorial . Web Front-end 639 2025-07-07 02:31:51
-
- How to add JavaScript to an HTML page
- There are several common ways to add JavaScript to HTML pages, which can be selected according to your needs. First, inline scripts are suitable for small functions or tests, and write code directly in HTML, but are not convenient for maintenance; second, external JS files are introduced, with clear structure, conducive to collaboration, and suitable for project development; third, use defer or async attributes to control the loading order to avoid blocking HTML parsing; fourth, dynamically load scripts, loading on demand to improve performance. It is recommended to choose the appropriate method according to the scene, pay attention to the script execution order and loading timing.
- HTML Tutorial . Web Front-end 939 2025-07-07 02:30:22
-
- How to associate captions with images or media using the html figure and figcaption elements?
- Using HTML sums allows for intuitive and semantic clarity to add caption text to images or media. 1. Used to wrap independent media content, such as pictures, videos or code blocks; 2. It is placed as its explanatory text, and can be located above or below the media; 3. They not only improve the clarity of the page structure, but also enhance accessibility and SEO effect; 4. When using it, you should pay attention to avoid abuse, and apply to content that needs to be emphasized and accompanied by description, rather than ordinary decorative pictures; 5. The alt attribute that cannot be ignored, which is different from figcaption; 6. The figcaption is flexible and can be placed at the top or bottom of the figure as needed. Using these two tags correctly helps to build semantic and easy to understand web content.
- HTML Tutorial . Web Front-end 743 2025-07-07 02:30:01
-
- What is the difference between HTML and tags?
- The main difference between the harmony and the semantics. 1. It is only used for bold styles, and does not indicate importance; it means that the content is important. 2. Used only for italic style; means emphasis. 3. Screen readers have different ways to read the same. 4. Semantic tags improve accessibility and SEO. 5. Semantic tags should be used to explicitly express intentions.
- HTML Tutorial . Web Front-end 427 2025-07-07 02:27:12
-
- What is the purpose of the main tag in HTML?
- Thetagdefinesadocument’sprimarycontent,improvingaccessibilityandSEO.Itensuresscreenreaderscanquicklynavigatetothemainsection,shouldbeuniqueperpage,notnestedinsideheadersornavs,andstartsthecorecontenthere.Searchenginesprioritizecontentwithin,enhancing
- HTML Tutorial . Web Front-end 357 2025-07-07 02:25:52
-
- What is the purpose of the lang attribute in the HTML tag?
- ThelangattributeinHTMLspecifiesthelanguageofcontent,aidingaccessibilityandSEO.1.Screenreadersuseittoapplycorrectpronunciationrulesfordifferentlanguages.2.Itimprovesaccessibilitybyensuringproperspeechoutputforvisuallyimpairedusers.3.Itsupportsaccurate
- HTML Tutorial . Web Front-end 658 2025-07-07 02:23:32
-
- What is Web Storage API in HTML5 (localStorage and sessionStorage)?
- WebStorageAPI provides two ways for clients to store data: localStorage and sessionStorage. localStorage is used to store data permanently, and will not be lost even if the browser is closed. It is suitable for saving user preferences, topic settings and other information; sessionStorage is only valid during the current session and is cleared after closing the page or tag. It is suitable for temporary data such as temporary storage of forms. Both support setItem(), getItem(), removeItem() and clear() methods to operate data, but the stored data must be in string format, and the object or array must be converted through JSON.stringify().
- HTML Tutorial . Web Front-end 317 2025-07-07 02:22:31
-
- What is the difference between link rel prefetch and preload in html?
- rel="preload" is used for the high priority resources that are much needed on the current page, while rel="prefetch" is used for the low priority resources that may be needed in the future. 1.rel="preload" tells the browser to download key resources such as fonts, scripts or style sheets immediately to improve the rendering speed of the current page; 2.rel="prefetch" serves as a prompt to allow the browser to download resources that may be used in subsequent navigation when it is idle, such as CSS or JS files on the next page. Both are designed to optimize load performance, but are applicable in different scenarios, and incorrect use can lead to bandwidth waste or performance degradation.
- HTML Tutorial . Web Front-end 430 2025-07-07 02:22:11
-
- What are the different input types in an HTML form
- There are 8 common input types in HTML forms, which are suitable for different data input requirements. 1.text is used for basic text input; 2.password is used to hide the password input displayed; 3.email is used to input email addresses specifically; 4.number is used for digital input and supports adjustment of numerical values; 5.checkbox is used for multiple selection check boxes; 6.radio is used for single-select button groups; 7.date provides date selection function; 8.submit is used to submit form data. Each type has its own specific uses and browser support features. Regular use can improve user experience and data processing efficiency.
- HTML Tutorial . Web Front-end 935 2025-07-07 02:16:42
-
- How to use HTML data attributes (data-*) with JavaScript?
- How to set and use HTML data-properties? 1. Add data-attribute to HTML elements, with the format data-added a custom name, such as data-product-id; 2. Use element.dataset to obtain the value through JavaScript, and the attribute name will automatically be converted to camel naming; 3. You can modify or add data-values ??by directly assigning datasets, but the modification will not be automatically persisted; 4. Common uses include storing IDs, controlling status, and passing component parameters. For example, the button's data-property uniformly monitors click events and handles filtering logic, making the code clearer and easier to expand.
- HTML Tutorial . Web Front-end 452 2025-07-07 02:16:21
-
- What is the HTML template tag?
- Tags are containers used in HTML5 to store lazy content. They are not directly rendered when the page is loaded, but can be dynamically extracted and used through JavaScript. It is suitable for scenes where the same structure needs to be created repeatedly, such as generating lists, cards, or pop-ups. 1. The UI component structure can be predefined to improve component development efficiency; 2. Reduce the amount of code used by JS to splice HTML to enhance maintainability; 3. Improve page performance, because the template does not participate in rendering at the beginning. The steps to use include: define the template structure in HTML, obtain and clone its contents in JavaScript, and insert the DOM after modification. Notes include: only effective in modern browsers, avoid directly embedding scripts or styles, and it is recommended to add class names or IDs for operation in complex structures.
- HTML Tutorial . Web Front-end 866 2025-07-07 02:01:52
-
- Where to start learning HTML for free?
- TolearnHTMLforfree,startwithinteractiveplatformslikefreeCodeCamp,W3Schools,Codecademy,andTheOdinProjectforstructuredlessons.UseMDNWebDocsasareliablereferencefortagsandbestpractices.PracticebybuildingsimplepagessuchasanAboutMeorresumesiteusingonlyHTML
- HTML Tutorial . Web Front-end 256 2025-07-07 02:01:12
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.
Player special effects
2024-02-29
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
