Is it possible to set the size of the background image with CSS?
I want to do something like:
background: url('bg.gif') top repeat-y;
background-size: 490px;
But it seems it's totally wrong to do it like that...
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You totally can with CSS3:
body {
background-image: url(images/bg-body.png);
background-size: 100%; /* size the background image at 100% like any responsive img tag */
background-position: top center;
background-repeat:no-repeat;
}
This will size a background image to 100% of the width of the body element and will then re-size the background accordingly as the body element re-sizes for smaller resolutions.
Here is the example: http://www.sccc.premiumdw.com/examples/resize-background-images-with-css/
You can use two <div> elements:
One is a container (it is the one which you originally wanted the background image to appear at).
The second one is contained within. You set its size to the size of the background image (or the size you wish to be appearing).
The contained div is then set to be positioned absolute. This way it does not interfere with the normal flow of items in the containing div.
It enables you to use sprite images efficiently.
Just have nested divs to be cross browser compatible
<div>
<div style="background: url('bg.gif') top repeat-y;min-width:490px;">
Put content here
</div>
</div>
In support of the answer that @tetra gave, I want to point out that if the image is an SVG, then resizing the actual image is not necessary.
Since an SVG file is just XML you can specify whatever size you want it to appear within the XML.
However, if you are using the same SVG image in different places and need it to be different sizes, then using background-size is very helpful. SVG files are inherently smaller than raster images anyway and resizing on the fly with CSS can be very helpful without any performance cost that I am aware of, and certainly little to no loss of quality.
Here is a quick example:
<div class="hasBackgroundImage">content</div>
.hasBackgroundImage
{
background: transparent url('/image/background.svg') no-repeat 10px 5px;
background-size: 1.4em;
}
(Note: this works for me in OS X 10.7 with Firefox 8, Safari 5.1, and Chrome 16.0.912.63)
This is possible to do in CSS3 with background-size
.backgroungImage {
background: url('../imageS/background.jpg') no-repeat;
background-size: 32px 32px;
}
If your users use only Opera 9.5+, Safari 3+, Internet Explorer 9+ and Firefox 3.6+ then the answer is yes. Otherwise, no.
The background-size property is part of CSS 3, but it won't work on most browsers.
For your purposes just make the actual image larger.
background-size is working in Chrome 4.1, but so far I couldn't make it work in Firefox 3.6.
background-size: 200px 50px change it to 100% 100% and it will scale on the needs of the content tag like ul li or div... tried it
For example:
Background image will always fit to container size (width 100% and height 100px).
Cross-browser CSS:
.app-header {
background: url("themes/default/images/background.jpg") no-repeat;
-moz-background-size: 100% 100px;
-webkit-background-size: 100% 100px;
-o-background-size: 100% 100px;
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src = "themes/default/images/background.jpg", sizingMethod = 'scale');
background-size: 100% 100px;
}
You can't set the size of your background image with the current version of CSS (2.1).
You can only set: position, fix, image-url, repeat-mode, and color.
I use background images for buttons, but it only shows the image the same size as the text, even if I set width and height. Instead, I pad out my text with characters (non-breaking spaces). I slap in as many as needed, basically, until all the button background appears. So I might have code like this:
In the style sheet:
#v2menu-home {
background-image:url(../v2-siteimages/button.png);
background-repeat:no-repeat;
}
In the HTML document:
<div id="v2menu">
<a id="v2menu-home" href="/index.php">home </a>
</div><!-- v2menu -->
Not possible. The background will always be as large as it can be, but you can stop it from repeating itself with background-repeat.
background-repeat: no-repeat;
Secondly, the background does not go into margin-area of a box, so if you want to have the background only be on the actual contents of a box, you can use margin instead of padding.
Thirdly, you can control where the background image starts. By default it's the top left corner of a box, but you can control that with background-position, like this:
background-position: center top;
or perhaps
background-position: 20px -14px;
Negative positioning is used a lot with CSS sprites.
put the below code in the body of you css file
background-image: URL('../images/wave-green-plain-colour.jpg') ;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
width:100px;
You have written
background: url('bg.gif') top repeat-y;
background-size: 490px;
but you will only see the background depending on the size of the container.
if you have an empty container with the background url and whatever the background-size is, you will not see the bg.gif.
If you set the size of the continer to
background: url('bg.gif') top repeat-y;
background-size: 490px;
height: 490px;
width: 490px;
combined to the code you wrote above, you will be able to see the bg.gif file.
If you want to set background-size in the same background property you can use use:
background:url(my-bg.png) no-repeat top center / 50px 50px;
There's one forgotten argument:
background-size: contain;
This won't stretch your background-image as it would do with cover. It would stretch until the longer side reaches the width or height of the outer container and therefore preserving the image.
Edit: There's also -webkit-background-size and -moz-background-size.
The background-size property is supported in IE9+, Firefox 4+, Opera, Chrome, and Safari 5+.
Only CSS 3 supports that,
background-size: 200px 50px;
But I would edit the image itself, so that the user needs to load less, and it might look better than a shrunken image without antialiasing.
Source: Stackoverflow.com