Mobile/Open Web/CSS
Contents
CSS Background & Borders Level 3
background-attachment: local
| |
|---|---|
| Status | Not supported by Firefox |
| Parity | WebKit, IE, Opera |
| How to detect | Presence of the keyword local in the, eventually prefixed, property. There may be several keywords, comma-separated. If one is local the Web site may be broken.
|
| # affected sites | Unknown (Expected low) |
| Workaround | TBD, not sure there is a CSS-only one (may need some JS) |
| Bug | 483446 |
| Evangelism status | Minor issue (no report) |
border-image & border-image-*
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|---|---|
| Status | A previous draft is supported as -moz-border-image. A patch does exist which creates the border-image-* longhand properties and extend the shorthand syntax to make it match.
|
| Parity | Not yet, though WebKit support it (Chrome 20?) |
| # affected sites | Significant number (748253 ) |
| Workaround | None, we are stuck. |
| Bug | original bug (in Firefox 3.5), bug for revisions (in Firefox 15 after multiple backouts), followup bug to revisions (in Firefox 15) |
| Evangelism status | Important issue (several apps are using this). Cannot go on release for the moment. |
border-image-repeat: space
| |
|---|---|
| Status | Not implemented (and of course its shorthand equivalent neither). |
| Parity | ? |
| How to detect | Presence of the keyword space in the, eventually prefixed, property. There keyword may also appears in the shorthand background-image.
|
| # affected sites | Unknown (Expected: very low) |
| Workaround | None |
| Bug | 720351 |
| Evangelism status | Minor issue (no report) |
background
| |
|---|---|
| Status | Not all new CSS3 B&B background properties are allowed in the shorthand background.
|
| Parity | "unknown" |
| How to detect | The value of background-size is preceded by a /. No other properties do this: the mere presence of a / is enough to detect it.The values of |
| # affected sites | Unknown (expected low, but to increase) |
| Workaround | Use the longhand properties |
| Bug | 613659, 570326, 570896 |
| Evangelism status | Minor issue (no report) |
box-decoration-box
| |
|---|---|
| Status | Not supported by Firefox. We have an old version of the spec implemented until a different names. If Web sites do use it, we should look in more details |
| Parity | "unknown" |
| # affected sites | Unknown (expected low) |
| Workaround | Implement the Gecko-specific properties, but to be checked on practical cases |
| Bug | 613659 |
| Evangelism status | Minor issue (no report) |
CSS Transitions
Not yet in CR, or even in LC. Fairly good interoperability.
CSS Animations
Not yet in CR, or even in LC.
CSS Transforms
Not yet in CR or even in LC. The skew() function has been removed and may be a compatibility hazard.
CSS Values
We are ahead of WebKit (or very close), no compatibility problems right now
CSS Flexbox
The spec changes all the time right now. But the first WebKit-only website may appears. There is no work-around possible as long as we don't support flexbox (WIP)
CSS Columns
We don't support column-span and have not unprefixed. Not much in use, though.
CSS Images Level 3
| linear-gradient() | |
|---|---|
| Status | -moz supported, patch (almost) ready to unprefix (and fix the angle). Landing the patch will break Web sites.
Note that Gecko doesn't support gradients in every properties where it should. |
| Parity | None, nobody unprefixed it right now |
| # affected sites | Potentially a lot |
| Workaround | -moz + unprefixed (but we cannot ask Web devs to do that as they can't test). Maybe we should keep both syntax for a while? |
| Bug | 752187 |
| radial-gradient() | |
|---|---|
| Status | -moz supported, patch (almost) ready to unprefix (and fix the syntax). Landing the patch will break Web sites.
Note that Gecko doesn't support gradients in every properties where it should. |
| Parity | None, nobody unprefixed it right now |
| # affected sites | Potentially, but probably not that much |
| Workaround | -moz + unprefixed (but we cannot ask Web devs to do that as they can't test). Maybe we should keep both syntax for a while? |
| Bug | 752187 |
