- From: Dirk Schulze <dschulze@adobe.com>
- Date: Tue, 24 Dec 2013 07:47:40 +0000
- To: Simon Fraser <smfr@me.com>
- CC: Rik Cabanier <cabanier@gmail.com>, David <david.email@ymail.com>, www-style list <www-style@w3.org>
On Dec 24, 2013, at 8:34 AM, Simon Fraser <smfr@me.com> wrote: > On Dec 23, 2013, at 7:06 PM, Rik Cabanier <cabanier@gmail.com> wrote: > >> On Mon, Dec 23, 2013 at 4:33 PM, David <david.email@ymail.com> wrote: >> Hello, >> >> it would be great if a CSS property would be added to control the opacity of the background-image. >> The background-color and its opacity is already controlable via rgba() or hsla(). >> The opacity property itself allows just to control the opacity of the whole element. >> >> We had a short discussion on this at the last F2F during TPAC [1]. >> It was unfortunately not minuted. :-( >> >> During the meeting, people said that this feature has been requested for a long time but for some reason, it never was spec'ed out or implemented. >> >> Normative text could look as follows: >> The ‘background-opacity’ property >> > An alternative to this would be to have an image function that gives an image alpha, e.g.: > > background-image: alpha-image(foo.png, 50%); > > This would seem preferable to a property that can only apply alpha to background images. Just to give more alternatives: In WebKit the CSS Image function -webkit-filter() is implemented with the opacity filter function: background-image: -webkit-filter(foo.png, opacity(0.5)); Greetings, Dirk > > Simon >
Received on Tuesday, 24 December 2013 07:48:29 UTC