Mid 2019 refreshment

[mischah]

html5please is pretty much unmaintained and needs a major update.

The idea

• review and update each and every feature
• collect and add new features

I hope we find people willing to contribute to make that happen.

How to proceed

New features

If you find a new feature that isn’t part of html5please yet please feel free to comment on this issue and add a new issue before starting to work on it.

• fit-content
• Web Animations API
• closest (Element.closest())
• Variable fonts
• JavaScript Font Loading API
• CSS font-display property
• Font loading API

Update existing features

Feel free to pick a feature out of the posts directory that you would like to work on.

Please create a new issue, use a title containing the feature name and reference this issue to help us tracking the progress.

Please consider the following when updating existing features:

• Does the feature need a status update?
• In case there are polyfills: Are they still relevant and the best choice?
• Are there any additional helpful resources to add to the body of the post or as link via the moreurl property of the post
• Does the file name matches the feature on https://caniuse.com to automatically add a link?

Update status of existing features:

• Eventsource
• audio
• background-image
• border-image
• border-radius
• box-reflection
• box-shadow
• box-sizing
• calc
• canvas
• classlist
• contenteditable
• cors
• css animations
• css-filters
• css-fixed
• css-sticky
• css3-colors
• datalist
• dataset
• details
• dialog
• dom
• dragndrop
• es5
• es6
• exclusions
• fetch-api
• fileapi
• filesystem
• flexbox
• font-feature-settings
• fontface
• form-validation
• formdata
• fullscreen
• geolocation
• gradients
• grids
• history
• html5semantic
• hyphens
• iframe-sandbox
• iframe-seamless
• iframe-srcdoc
• img-srcset
• indexeddb
• input-color
• input-datetime
• input-number
• input-placeholder
• input-range
• input-search
• interaction-media-features
• json
• localstorage
• masks
• matchmedia
• mediaqueries
• menu
• meter
• microdata-domapi
• minmaxwh Removed see Remove minmaxwh ? #460
• multibackgrounds
• multicolumn
• offline
• ol-reversed
• opacity
• paged-media
• picture
• pointer-events
• postmessage
• progress
• pseudo-elements
• regions
• rem
• requestanimationframe
• ruby
• scoped-css
• selectors
• supports
• svg
• text-overflow
• text-shadow
• text-stroke
• track
• transforms
• transitions
• vibration
• video
• viewport-units
• webcomponents
• webgl
• webp
• websockets
• websql
• webworker