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How to make background image repsonsive
Posted on 2013-12-16
Hello
I dont really know much css and i was looking at this website
http://www.population-2.com/dev/peekaboo-wp/
and I was wondering if you could point me to the css in this website that makes the background image responsive. I am not sure if it is truly responsive but it seems to resize based on browser resolution
thanks
I dont really know much css and i was looking at this website
http://www.population-2.com/dev/peekaboo-wp/
and I was wondering if you could point me to the css in this website that makes the background image responsive. I am not sure if it is truly responsive but it seems to resize based on browser resolution
thanks
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4 Comments
Active 3 days ago
This website uses this jquery plugin:
http://buildinternet.com/project/supersized/
The original background image is:
http://www.population-2.com/dev/peekaboo-wp/wp-content/uploads/2013/08/bg1.jpg
and the plugin initialization can be found on line: 52 of the page source code.
http://buildinternet.com/project/supersized/
The original background image is:
http://www.population-2.com/dev/peekaboo-wp/wp-content/uploads/2013/08/bg1.jpg
and the plugin initialization can be found on line: 52 of the page source code.
Here is a pure CSS solution that does not require jQuery or JavaScript:
The trick is: background-size: 100%;
http://www.w3schools.com/cssref/css3_pr_background-size.asp
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style type="text/css">
html, body, div {
height: 100%;
width: 100%;
padding: 0;
margin: 0;
}
body
{
height: 100%;
width: 100%;
background: #000 url('http://upload.wikimedia.org/wikipedia/commons/b/be/Apollo17WorldReversed.jpg') no-repeat scroll 50% 50%;
background-size: 100%;
}
</style>
</head>
<body>
</body>
</html>
The trick is: background-size: 100%;
http://www.w3schools.com/cssref/css3_pr_background-size.asp
I would do this using just the CSS, similar to what hankknight has done.
I would modify it slightly to use different images at different screen sizes. This would keep the download size smaller for people on mobile devices.
This gives you a different images to download depending on screen size.
Set the image size to whatever works best for the image you are using. hankknight's link to w3c explains the different background size options.
I would modify it slightly to use different images at different screen sizes. This would keep the download size smaller for people on mobile devices.
@media all and (max-width: 480px) {body
{
background-image: url(../images/MY-SmallImage.png)
background-size: cover;
}
}
@media all and (min-width: 481px) and (max-width: 768px) {body
{
background-image: url(../images/MY-MediumImage.png)
background-size: cover;
}
}
@media all and (min-width: 769px) {body
{
background-image: url(../images/MY-LargeImage.png)
background-size: cover;
}
}
This gives you a different images to download depending on screen size.
Set the image size to whatever works best for the image you are using. hankknight's link to w3c explains the different background size options.
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