Article Tags
Article Tags
How to use HTML5 and tags? (External content)
Use it in preference to: the former supports fallback content, better accessibility and browser compatibility; the latter is lightweight but has no error handling, no fallback mechanism, and modern browsers have gradually deprecated plug-in support.
Jan 12, 2026 am 01:21 AM
How to use HTML5 semantic elements correctly? (SEO optimization)
mustappearexactlyonceperpage,outside/,andcontainonlyprimarycontent;misuselikeduplicationorwrappingnavigationdilutesSEOsignals.
Jan 12, 2026 am 12:29 AM
How to use HTML5 and ? (Image captions)
ThecorrectHTML5elementforimagecaptionsispairedwith,wheremustbeadirectchildofandplacedlastforsemanticbestpractice.
Jan 11, 2026 am 05:18 AM
How to use HTML5 color picker input? (Form design)
The submitted value is always a strictly formatted 7-character lowercase hexadecimal string, such as "#4a90e2", with transparency completely ignored, no alpha channel supported, and the initial value is an empty string.
Jan 11, 2026 am 05:03 AM
How to customize HTML5 video player controls? (UI design)
TocustomizeHTML5videocontrols,disablenativeoneswithcontrols="false"andbuildcustomUIwithJavaScript;syncplay/pauseviaeventlisteners,ensureprogressbaraccuracybywaitingforloadedmetadata,andhandlemobilevolumerestrictionswithuser-gesture–dependen
Jan 11, 2026 am 03:59 AM
How to use HTML5 hidden attribute vs CSS display:none? (Visibility control)
The hidden attribute semantically hides the element, affecting the accessibility tree and focus, but CSS overlays (such as display:block) can make it visible; display:none is purely visually hidden and moved out of the layout flow, without affecting semantics.
Jan 11, 2026 am 03:36 AM
How to use HTML5 and tags? (Document structure)
mustappearexactlyonceperpageandnotbenestedinsectioningelements;itshouldonlywrapunique,route-specificcontent,neverheaders,navs,ormultipleinstances.
Jan 11, 2026 am 03:13 AM
How to Add JavaScript to an HTML5 Page Correctly? ( Tag Explained)
To add JavaScript correctly, you need to place the tag before (with defer or async) or; defer is executed in order after HTML parsing, and async is executed out of order when ready. Both are not suitable for inline scripts; the type attribute in HTML5 can be omitted, and module scripts use type="module".
Jan 11, 2026 am 03:02 AM
How to create a simple drawing application with HTML5 Canvas? (A Fun Project)
A simple drawing application based on HTML5Canvas, implemented with a few lines of JavaScript: setting the canvas element and drawing context, listening to mouse/touch events to draw continuous lines, and supporting color, line width adjustment and screen clearing functions.
Jan 11, 2026 am 01:28 AM
How to use the HTML5 output element to display calculation results
TheoutputelementinHTML5displaysdynamicresultsfromuseractionsorcalculations,offeringsemanticmeaningandread-onlyfunctionality.Itsupportsattributeslikefor,name,andidforaccessibilityandscripting.Usedwithinforms,itcanupdateinrealtimeviainlineeventsorJavaS
Jan 11, 2026 am 01:07 AM
How to create multi-step forms in HTML5? (UX design)
HTML5providessemanticstructureandvalidationhooks—notnativestepnavigation—formulti-stepforms:usefieldset/legendwithARIAattributes,formnovalidateon“Next”buttons,andavoidCSS-onlyapproachesthatfailaccessibilityandfunctionality.
Jan 11, 2026 am 12:30 AM
How to check for HTML5 feature support in a browser? (Using Modernizr)
Modernizr is a JavaScript library for detecting HTML5/CSS3 features. Feature detection is implemented by adding class names to html elements and providing Boolean attributes. You can customize downloads, use JavaScript to determine features, CSS conditional styles, extend custom tests, and load polyfills on demand.
Jan 11, 2026 am 12:14 AM
How to Embed Video in HTML5? (The Tag Explained)
ThetagembedsvideoinHTML5withoutplugins,supportingMP4,WebM,andOggformatswithbuilt-incontrols,multipleelementsforcompatibility,attributeslikecontrols,autoplay,muted,loop,andpreload,fallbackcontentforunsupportedbrowsers,forcaptions,andCSSforresponsivest
Jan 10, 2026 am 04:46 AM
How to use HTML5 for game development? (Game logic)
The game loop must use requestAnimationFrame to achieve 60fps, separate update (including deltaTime physical calculation) and render (pure drawing), key status needs to be tracked manually, and Canvas2D context is preferred for 2D games.
Jan 10, 2026 am 04:39 AM
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