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Firefox v52.0.1 has a problem with CSS position: fixed

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CharlesEF
 
Posts: 132
Joined: November 21st, 2003, 4:56 am
Location: Edinburg, Texas

Post Posted March 19th, 2017, 10:48 am

Hi All,

I think I have found a bug in FF. See http://www.cef-inc.com/temp.html for proof. The page consists of 3 sections (CSS), red is the header, yellow is the content and blue is the footer. The menu is contained in the content section and has position: fixed defined in the #menu. I have found that when position: fixed is used the white background of the menu extends to cover the scroll bar. If position: relative or absolute is used then the background does not cover the scroll bar.

Is this a bug with position: fixed (CSS) in Firefox?


Thanks for any help,

Charles

therube

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Posts: 17539
Joined: March 10th, 2004, 9:59 pm
Location: Maryland USA

Post Posted March 20th, 2017, 10:08 am

Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14 Pinball CopyURL+ FetchTextURL FlashGot NoScript

CharlesEF
 
Posts: 132
Joined: November 21st, 2003, 4:56 am
Location: Edinburg, Texas

Post Posted March 20th, 2017, 11:15 am

According to that page it affects XHTML only, not HTML. My test page is HTML and CSS only.

CharlesEF
 
Posts: 132
Joined: November 21st, 2003, 4:56 am
Location: Edinburg, Texas

Post Posted March 21st, 2017, 11:39 am

I don't know if I did something wrong with this version of the page so I started over. This time I got it working. Hopefully, someone can tell me if I did something wrong or that this is a bug. The new page is http://www.cef-inc.com/temp1.html

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