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test10.php
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test10.php
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<?php
//create a unique id so we cachebust
$id = uniqid(rand(),true);
?>
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Media Query Test: Background Image with Mobile First Cascade Override</title>
<meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0" />
<link rel="stylesheet" href="_css/style.css" />
<!-- Test 10 Styles -->
<style type="text/css">
#test10 {background-image:url('images/mobile.png?<?php echo $id; ?>');width:200px;height:75px;}
@media all and (min-width: 600px) {
#test10 {background-image:url('images/desktop.png?<?php echo $id; ?>');}
}
</style>
</head>
<body>
<h1>Media Query Image Download Test</h1>
<p>Thanks to <a href="http://thesquareplanet.com/">Jon Gjengset</a> for the suggestion!</p>
<h2 id="t10">Test Ten: Background Image with Mobile First Cascade Override</h2>
<p>
In this test, we start with a css background image that is a mobile version of the image. Then we use a css media query to replace that background image with the desktop version using min-width.
This is effectively the opposite of test four, and was added on the intuition that the introduction of min-width might be what is making test 5 work.
</p>
<div id="test10"></div>
<h4>HTML Code</h4>
<code><div id="test10"></div>
</code>
<h4>CSS Code</h4>
<code><style type="text/css">
#test10 {background-image:url('images/mobile.png?<?php echo $id; ?>');width:200px;height:75px;}
@media all and (min-width: 600px) {
#test10 {background-image:url('images/desktop.png?<?php echo $id; ?>');}
}
</style>
</code>
<div id="loaded">
<h2>Results</h2>
</div>
<?php include('includes/testLinks.inc.php'); ?>
<script type="text/javascript" src="_js/imageTest.js"></script>
<script type="text/javascript" charset="utf-8">
var _bTestResults = {};
window.onload = function() {
//set the domain prefix so we can just pass image names
prefix = 'images/';
//set our suffix
//needed because setting image.src fires request
//this helps us avoid caching messing with the results
suffix = '<?php echo $id; ?>';
//get the div where we'll spit out the results
target = document.getElementById('loaded');
var images = [
['desktop.png', 'Loaded (large screen)'],
['mobile.png', 'Loaded (small screen)']
];
_bTestResults = imageTest(images);
// Fetch the Browserscope script that sucks the results from _bTestResults
(function() {
var _bTestKey = 'agt1YS1wcm9maWxlcnINCxIEVGVzdBj8wL4UDA';
var _bScript = document.createElement('script');
_bScript.src = 'http://www.browserscope.org/user/beacon/' + _bTestKey;
_bScript.src += '?sandboxid=d49a247e1ed6525';
_bScript.setAttribute('async', 'true');
var scripts = document.getElementsByTagName('script');
var lastScript = scripts[scripts.length - 1];
lastScript.parentNode.insertBefore(_bScript, lastScript);
})();
}
</script>
</body>
</html>