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w3 validation: warning 'no background-color with your color'

Sent by Jukka K. Korpela on 18 August 2003 09:09


On Mon, 18 Aug 2003, Jan DeVries wrote:

> as i understand from previous mail i have to set the beackground-color
> for elements for which i've explicitly have set the color. i.e.
> transparent or white if i want to be the same as the background... (if
> background is white of course...)

Yes indeed. And you might set it using
background: transparent
or
background: white
instead of just setting background-color. It's shorter, and it sets
background-image to none. It's not very likely that a user style sheet or
browser's default style sheet sets a background image for, say, h1
elements. But it's surely possible, and in this case the precaution
actually saves typing.

(The shorthand 'background' _always_ sets all background properties for
the element, either to the specified values, or to the initial values
defined in CSS specifications, such as 'none' for 'background-image'.)

-- 
Jukka "Yucca" Korpela, http://www.cs.tut.fi/~jkorpela/

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