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-webkit- vendor prefix css class is rendered

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  • Last reply by cor-el

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I have a special rule in my css to target a webkit webview on ios which has a layout rendering problem. This is a known issue. The only fix for this is adding this rule:

-webkit-transform: translate3d(0, 0, 0);

This gives some side effects in my apllication because the z-indexation is messed up. This was an acceptable trade-off when only webkit browsers are concerned.

Suddenly I see the side-effect occur in Firefox Quantum. It seems the css vendor-prefixed rule is also executed. I don't understand that. Isn't the browser supposed to only run it's own vendor prefixed classes? in this case the -moz- prefixed classes?

See the screenshot

Although only the `-webkit-transform` is defined is also shows the non-prefixed rule `transform:`

Chosen solution

There is this pref to honor CSS rules with a -webkit prefix:

  • layout.css.prefixes.webkit

See also this old bug:

  • bug 725299 - Wrong z-ordering with css 3d transforms using opacity and transform-style

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html
)

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Chosen Solution

There is this pref to honor CSS rules with a -webkit prefix:

  • layout.css.prefixes.webkit

See also this old bug:

  • bug 725299 - Wrong z-ordering with css 3d transforms using opacity and transform-style

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html
)