- From: Simon Sapin <simon.sapin@exyr.org>
- Date: Fri, 14 Jun 2013 16:57:03 +0100
- To: www-style@w3.org
- CC: fantasai <fantasai.lists@inkedblade.net>, Robert O'Callahan <robert@ocallahan.org>
Hi, So, we recently decided that with 'background-attachment: local', the background positioning area is based on the "inner" scrolled content, not the "outer" box: http://lists.w3.org/Archives/Public/www-style/2013May/0516.html http://lists.w3.org/Archives/Public/www-style/2013May/0783.html What about the background *painting* area? I think it should be the same. Specifically: When 'background-attachment' is 'local' for a given background layer: 1. Both the positioning and painting area are based on the scrolled content. (The difference between padding-box and border-box includes any non-overlay scrollbars in addition to borders.) 2. Values of 'overflow' other than 'visible' also affect the background layer: the background layer is only visible at the intersection of the painting area and the "outer" padding area. Note: This means that 'background-clip: border-box' is indistinguishable from 'padding-box'. Note: when 'overflow' is 'visible', 'background-attachment: local' is the same as 'scroll'. Thoughts? -- Simon Sapin
Received on Friday, 14 June 2013 15:57:27 UTC