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Why don't :before and :after pseudo elements work with `img` elements? [duplicate]
...e interaction of :before and :after with replaced elements (such as IMG in HTML). This will be defined in more detail in a future specification.
I guess this means they don't work with img elements (for now).
Also see this answer.
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Responsive web design is working on desktop but not on mobile device
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You are probably missing the viewport meta tag in the html head:
<meta name="viewport" content="width=device-width, initial-scale=1">
Without it the device assumes and sets the viewport to full size.
More info here.
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CSS counter-increment 属性经典详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...代码搞定。下面通过两个实例详解它的用法：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<style type="text/css">
body {counter-reset:section;}
h1 {counter-reset:subsection;}
h1:before...
Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”
I have an HTML form in a JSP file in my WebContent/jsps folder. I have a servlet class servlet.java in my default package in src folder. In my web.xml it is mapped as /servlet .
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How is the default submit button on an HTML form determined?
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HTML 4 does not make it explicit. The current HTML5 working draft specifies that the first submit button must be the default:
A form element's default button is the
first submit button in
tree order whose form own...
Differences between SP initiated SSO and IDP initiated SSO
...as well -- https://documentation.pingidentity.com/pingfederate/pf80/index.shtml#gettingStartedGuide/task/idpInitiatedSsoPOST.html
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How to screenshot website in JavaScript client-side / how Google did it? (no need to access HDD) [du
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"Using HTML5/Canvas/JavaScript to take screenshots" answers your problem.
You can use JavaScript/Canvas to do the job but it is still experimental.
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Format numbers to strings in Python
...b': 'user', 'page': 42}
>>> 'http://xxx.yyy.zzz/%(web)s/%(page)d.html' % d
'http://xxx.yyy.zzz/user/42.html'
Here are the equivalent snippets but using str.format():
>>> "Name: {0}, age: {1}".format('John', 35)
'Name: John, age: 35'
>>> i = 45
>>> 'dec: {...
How to programmatically empty browser cache?
... context: document.body,
success: function(s,x){
$('html[manifest=saveappoffline.appcache]').attr('content', '');
$(this).html(s);
}
});
});
NOTE: This solution relies on the Application Cache that is implemented as part of the HTML 5 spec. It al...
jQuery append() - return appended elements
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There's a simpler way to do this:
$(newHtml).appendTo('#myDiv').effects(...);
This turns things around by first creating newHtml with jQuery(html [, ownerDocument ]), and then using appendTo(target) (note the "To" bit) to add that it to the end of #mydiv.
Beca...