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HTML5 Please - Use the new and shiny responsibly

 Genereret Marts 18 2026 16:31 PM

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Titel

HTML5 Please - Use the new and shiny responsibly

Længde : 48

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Beskrivelse

Look up HTML5, CSS3, etc features, know if they are ready for use, and if so find out how you should use them – with polyfills, fallbacks or as they are.

Længde : 153

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Overskrifter

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  • [H1] HTML5 Please
  • [H2] Use the new and shiny responsibly. Look up HTML5, CSS3, etc features, know if they are ready for use, and if so find out how you should use them – with polyfills, fallbacks or as they are. tell me more When Can I Use tells you the browser support story, while Modernizr gives you the power of feature detection. HTML5 Please helps you out with recommendations for polyfills and implementation so you can decide if and how to put each of these features to use. The recommendations below represent the collective knowledge of developers who have been deep in the HTML5 trenches. We hope they serve you well. Read Divya's backstory about this site.
  • [H2] Explore features
  • [H2] <audio>
  • [H2] background-image options
  • [H2] border-image
  • [H2] border-radius
  • [H2] box-reflection
  • [H2] box-shadow
  • [H2] box-sizing
  • [H2] calc()
  • [H2] <canvas>
  • [H2] classList
  • [H2] ContentEditable
  • [H2] CORS
  • [H2] CSS Animations
  • [H2] css filters
  • [H2] css3 colors
  • [H2] <datalist>
  • [H2] dataset
  • [H2] <details> & <summary>
  • [H2] <dialog>
  • [H2] DOM
  • [H2] drag n drop
  • [H2] ECMAScript 6 (and above)
  • [H2] EventSource (Server-Sent Events)
  • [H2] exclusions
  • [H2] Fetch API
  • [H2] File API
  • [H2] FileSystem & FileWriter API
  • [H2] fit-content
  • [H2] flexbox
  • [H2] @font-face
  • [H2] font-feature-settings
  • [H2] form validation
  • [H2] FormData API
  • [H2] fullscreen
  • [H2] geolocation
  • [H2] gradients
  • [H2] grids
  • [H2] history
  • [H2] HTML5 elements
  • [H2] hyphens
  • [H2] iframe[sandbox]
  • [H2] iframe[seamless]
  • [H2] iframe[srcdoc]
  • [H2] img[srcset]
  • [H2] IndexedDB
  • [H2] <input type=color>
  • [H2] <input type=date>
  • [H2] <input type=number>
  • [H2] <input type=range>
  • [H2] <input type=search>
  • [H2] input[placeholder]
  • [H2] Interaction media features
  • [H2] JSON
  • [H2] localStorage
  • [H2] masks
  • [H2] matchMedia
  • [H2] media queries
  • [H2] <menu>
  • [H2] <meter>
  • [H2] Microdata DOM API
  • [H2] multicolumn
  • [H2] multiple backgrounds
  • [H2] offline
  • [H2] ol[reversed]
  • [H2] opacity
  • [H2] paged media
  • [H2] <picture>
  • [H2] pointer events
  • [H2] position:fixed
  • [H2] position:sticky
  • [H2] postMessage
  • [H2] <progress>
  • [H2] pseudo elements
  • [H2] regions
  • [H2] rem unit
  • [H2] requestAnimationFrame
  • [H2] <ruby>
  • [H2] selectors
  • [H2] style[scoped]
  • [H2] @supports
  • [H2] <svg>
  • [H2] text-overflow
  • [H2] text-shadow
  • [H2] text-stroke
  • [H2] <track>
  • [H2] transforms
  • [H2] transitions
  • [H2] Vibration
  • [H2] <video>
  • [H2] Viewport units (vh, vw, vmin, vmax)
  • [H2] Web Components
  • [H2] Web Workers
  • [H2] WebGL
  • [H2] WebP
  • [H2] WebSockets
  • [H2] WebSQL DB
  • [H2] No items met your search =(
  • [H3] use with polyfill
  • [H3] use with fallback
  • [H3] use with fallback
  • [H3] use
  • [H3] avoid
  • [H3] use
  • [H3] use
  • [H3] use with fallback
  • [H3] use with polyfill
  • [H3] use with polyfill
  • [H3] use
  • [H3] use with polyfill
  • [H3] use
  • [H3] caution
  • [H3] use with fallback
  • [H3] use with polyfill
  • [H3] use with fallback
  • [H3] use with polyfill
  • [H3] caution with polyfill
  • [H3] caution with polyfill
  • [H3] caution with polyfill
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  • [H3] use with polyfill
  • [H3] avoid
  • [H3] use with polyfill
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  • [H3] avoid
  • [H3] use
  • [H3] use
  • [H3] use
  • [H3] use with polyfill
  • [H3] caution
  • [H3] caution with fallback
  • [H3] use with fallback
  • [H3] use with fallback
  • [H3] caution
  • [H3] use with fallback
  • [H3] use with polyfill
  • [H3] use
  • [H3] use
  • [H3] avoid
  • [H3] use with polyfill
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  • [H3] caution with fallback
  • [H3] caution with polyfill
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  • [H3] use with polyfill
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  • [H3] use
  • [H3] use with fallback
  • [H3] caution with fallback
  • [H3] use with polyfill
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  • [H3] use with polyfill
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  • [H3] caution
  • [H3] use with polyfill
  • [H3] use
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  • [H3] use with polyfill
  • [H3] use with fallback
  • [H3] use with fallback
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  • [H3] use with polyfill
  • [H3] caution with fallback
  • [H3] caution with polyfill
  • [H3] use with fallback
  • [H3] caution with fallback
  • [H3] caution
  • [H3] caution with polyfill
  • [H3] avoid
  • [H4] html
  • [H4] css
  • [H4] css
  • [H4] css
  • [H4] css
  • [H4] css
  • [H4] css
  • [H4] css
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  • [H4] api
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  • [H4] api
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  • [H4] When you sunset IE8 support, you can use:
  • [H4] css
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  • [H4] svg
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Text/HTML balance

Balance : 0%

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FavIkon

Godt, din side har et FavIcon!

Printervenlighed

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Sprog

Godt, dit tildelte sprog er en.

Dublin Core

Denne side benytter IKKE Dublin Core principperne.

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HTML 5

Kryptering

Perfekt. Dit Charset er tildelt UTF-8.

W3C Validering

Fejl : 0

Advarsler : 0

Email Privatliv

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Udgået HTML

Godt! Vi har ikke fundet udgåede HTML tags i din kildekode

Hastigheds Tips

Alle tiders! Din webside bruger ikke nestede tabeller.
Perfekt. Ingen inline CSS kode er blevet fundet i dine HTML tags!
Godt, din website har få antal CSS filer
Perfekt, din website har få JavaScript filer.
Perfekt, din hjemmeside udnytter gzip.

Mobil

Mobil Optimering

Apple Ikon
Meta Viewport Tag
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XML Sitemap

Mangler

Dit websted ikke har en XML sitemap - det kan være problematisk.

Et sitemap lister URL'er, der er tilgængelige for gennemgang og kan indeholde yderligere oplysninger som dit websted seneste opdateringer, hyppigheden af ændringer, og betydningen af de webadresser. Dette gør det muligt søgemaskiner til at gennemgå webstedet mere intelligent.

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https://html5please.com/robots.txt

Stor, din hjemmeside har en robots.txt-fil.

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Free SEO Testing Tool

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