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- 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 868 2025-07-08 00:03:22
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- 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 633 2025-07-07 02:31:51
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- 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 935 2025-07-07 02:30:22
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- 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 740 2025-07-07 02:30:01
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- 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 423 2025-07-07 02:27:12
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- What is the purpose of the main tag in HTML?
- Thetagdefinesadocument’sprimarycontent,improvingaccessibilityandSEO.Itensuresscreenreaderscanquicklynavigatetothemainsection,shouldbeuniqueperpage,notnestedinsideheadersornavs,andstartsthecorecontenthere.Searchenginesprioritizecontentwithin,enhancing
- HTML Tutorial . Web Front-end 353 2025-07-07 02:25:52
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- 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 656 2025-07-07 02:23:32
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- 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 315 2025-07-07 02:22:31
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- 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 428 2025-07-07 02:22:11
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- 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 931 2025-07-07 02:16:42
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- 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 449 2025-07-07 02:16:21
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- 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 863 2025-07-07 02:01:52
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- Where to start learning HTML for free?
- TolearnHTMLforfree,startwithinteractiveplatformslikefreeCodeCamp,W3Schools,Codecademy,andTheOdinProjectforstructuredlessons.UseMDNWebDocsasareliablereferencefortagsandbestpractices.PracticebybuildingsimplepagessuchasanAboutMeorresumesiteusingonlyHTML
- HTML Tutorial . Web Front-end 252 2025-07-07 02:01:12
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- How to use the and tags to create an accordion in HTML?
- Yes,youcancreateasimpleaccordionusingonlytheandtagsinHTMLwithoutJavaScript.1.Usethetagtowrapeachsection'scontent.2.Placeataginsideastheclickableheading.3.StylewithCSSforborders,spacing,andiconcustomization.4.Includemultipleblocksformulti-sectionaccor
- HTML Tutorial . Web Front-end 1007 2025-07-07 02:00:52
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