Centering CSS background image
Question
The website I'm working on, Tamsnails.com , is just about done, but it has one issue that I've been bothered with for a while now. The background image of the store will simply not stretch to the full screen of my high resolution work laptop. I've tried a lot of things over the last couple of months, a lot of which I forget, but
I remember at first, I had it as an actual css background-img
then, I had
<head>
<body id="theBody">
<div id="backgroundImageWrapper" style="height: 100%; width: 100%; z-index: 0; position: absolute;">
<img id="mainBackgrond" src="background_image.JPG">
</div>
with mainbackground style
#mainBackgrond {
height: 100%;
left: 0;
position: absolute;
top: 0;
width: 100%;
z-index: -1;
}
Now, I have
<body id="theBody">
<img id="mainBackgrond" src="background_image.JPG">
<div id="wrapper">
with style
#mainBackgrond {
height: 50em;
left: 0;
position: absolute;
top: 0;
width: 100%;
z-index: -1;
}
because this at least looks good on my home laptop.
Yes, I know I spelled 'mainBackgrond' wrong.. bear with me here!
4 answers
solution1
1 2011-07-09 01:56:27
If the issue is that the image doesn't stretch to the bottom of the window (which is what I'm seeing in Chrome) then change the height: 50em on your #mainBackgrond style to:
height: 100%;
solution2
1 ACCPTED 2011-07-09 01:57:05
I don't think you can, unless you want to use HTML 5.
See: css scaled background image if that's acceptable to you.
Edit: FYI, using "Height: 100%" stretches to 100% of the content height, not the window.
solution3
1 2011-07-09 02:42:47
You might want to take a look at this ( or other similar jquery plugins )
http://srobbin.com/blog/jquery-plugins/jquery-backstretch/#demo - Quite simple to use and it stretches the background image fully without risking the aspect ratio.
solution4
0 2011-07-09 02:43:38
Try to remove the height property, this way it will maintain the aspect ratio and stretch all the way across the screen, if this is the intent.
#mainBackgrond {
position: fixed;
z-index: -1;
width: 100%;
left: 0px;
top: 0px;
background: url(/background_image.JPG) no-repeat center center fixed;
}
The background image itself is huge, and makes initial load time very slow, you should consider compressing it more or resizing.
also have a look at css media query a nice way to show different size background images for visitors with smaller screens that might not even have the resolution to see the background.
@media screen and (max-device-width: 480px) {
.column {
float: none;
}
}
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