 Backgrounds
There are 5 background properties, and 1 shorthand.
background-color
background-image
background-repeat
background-attachment
background-position
background (shorthand)
The important thing to note about backgrounds is that it doesn't have
to apply to the whole page, as the normal background HTML tag does. You
can specify backgrounds in paragraphs, table cells, headers and almost
anything else you want.
background-color and background-image
These two are very straight forward. For background-color the valid
values are colors, be it rgb, hex, or color name, and transparent, which
makes the background transparent.
There are only two values for background-image, none and a url to point
to an image object.
Examples:
P.bg1 { background-color: #000000;}
P.bg2 { background-image: url(images/bg1.gif) }
background-repeat
Valid values are: repeat,
repeat-x,
repeat-y, and
no-repeat. A value of repeat, repeats the background horizontally
and vertically. repeat-x only repeats the background in the horizontal
direction, repeat-y vertical direction. And as you might have thought
no-repeat does not repeat the background at all.
Example:
<BODY style="background-repeat:no-repeat" background="test.gif">
background-attachment
There are two values for background-attachment,
scroll and
fixed. A value of "scroll" is what is
common with browsers today. The background scrolls along as you do. A
value of "fixed" will keep the background fixed, with the text and other
goodies scrolling on top of it.
Example:
<BODY style="background-attachment:fixed" background="test.gif">
background-position
You can specify where the background is to be placed with this
property. Valid values are: length,
percentage,
top,
center,
bottom,
left,
right.
For example, the below declaration positions the background image at
the lower footnote of the page:
<BODY style="background-position: bottom right" background="test.gif">
background (shorthand)
Finally, we've stumble upon the shorthand notation for background,
essentially all you need to manipulate the background image using CSS. The
notation combines
background-color,
background-image,
background-repeat,
background-attachment, and
background-position, in that order.
Here's the classic example that renders a non repeating background
image, centered and fixated on the page:
BODY { background: white url(bg1.gif) no-repeat fixed center center }
Click here to see example
|
