Bug 23842 – overflow-x: -webkit-marquee always scrolls text even if not too long

• Component: CSS
• Status: RESOLVED INVALID

According to CSS3, the marquee effect on overflow-x is only started if the content is too long (http://www.w3.org/TR/css3-box/#marquee).

On Webkit r40771, the marquee effect is always started

Created attachment 165358 [details]
Simple test to demonstrate marquee bug

The attached file is a simple demonstration of this bug.

I can confirm that, as per the original but description, overflow-x: -webkit-marquee is always scrolling text even if it's not overflowing.

I'm seeing this bug in Safari 6, Chrome 21, iTunes 10.7 (in iTunes LPs), WebKit Nightly (as per 23rd September 2012), all on Mac OS X 10.8, as well as Safari and UIWebView on iOS 6.

This bug is *not* present in Safari 5 on Mac OS X, or Safari/UIWebView on iOS 5.0 or 5.1.

[Victor]

I can confirm that this issue is still present on the lasted webkit buid as of Octuber 30, 2012 (WebKit r132908).

This is another page/example, demonstrating the issue: http://victmo.com/marquee-bug.html

I also checked on lastest Chrome canary build and the problem is still present (bug 158472: http://code.google.com/p/chromium/issues/detail?id=158472).

[Ahmad Saleem]

marquee properties are not supported by browsers and following commit removed various -webkit-marquee properties support (which are also used in this bug):

https://github.com/WebKit/WebKit/commit/57353ad402d37b33974920d7f925d9fa96a288ef

Since it was non-standard support and now marquee behavior is achieved via CSS Animations and Transforms etc., can this be closed? Thanks!