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How do you keep parents of floated elements from collapsing? [duplicate]
...
</div>
CSS:
.clearfix::after {
content: " ";
display: block;
height: 0;
clear: both;
}
With a little CSS targeting, you don't even need to add a class to the parent DIV.
This solution is backward compatible with IE8 so you don't need to worry about older browsers f...
C++ catch blocks - catch exception by value or reference? [duplicate]
...des items like an error code. If a MyException type was thrown your catch block would cause it to be converted to a CustomException instance which would cause the error code to change.
share
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im...
Get user info via Google API
...re": "xx",
"gender": "xx",
"locale": "xx"
}
To Tahir Yasin:
This is a php example.
You can use json_decode function to get userInfo array.
$q = 'https://www.googleapis.com/oauth2/v1/userinfo?access_token=xxx';
$json = file_get_contents($q);
$userInfoArray = json_decode($json,true);
$googleEmai...
CSS margin terror; Margin adds space outside parent element [duplicate]
...e following rules:
float: left/right;
position: absolute;
display: inline-block;
overflow: auto/scroll/hidden;
clear: left/right/both;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
The W3C specification defines collapsing margins as ...
How to listen for changes to a MongoDB collection?
...time, or is there a way my script can wait for inserts to occur? This is a PHP project that I am working on, but feel free to answer in Ruby or language agnostic.
...
Changing the child element's CSS when the parent is hovered
...y not just use CSS?
.parent:hover .child, .parent.hover .child { display: block; }
and then add JS for IE6 (inside a conditional comment for instance) which doesn't support :hover properly:
jQuery('.parent').hover(function () {
jQuery(this).addClass('hover');
}, function () {
jQuery(this...
Catch multiple exceptions in one line (except block)
...
How do I catch multiple exceptions in one line (except block)
Do this:
try:
may_raise_specific_errors():
except (SpecificErrorOne, SpecificErrorTwo) as error:
handle(error) # might log or have some other default behavior...
The parentheses are required due to older s...
In C, do braces act as a stack frame?
...tandard specifies that the lifetime of automatic variables declared in the block extends only until the execution of the block ends. So essentially those automatic variables do get "destroyed" at the end of the block.
– caf
May 4 '10 at 1:18
...
Center image using text-align center?
...
That will not work as the text-align property applies to block containers, not inline elements, and img is an inline element. See the W3C specification.
Use this instead:
img.center {
display: block;
margin: 0 auto;
}
<div style="border: 1px solid black;">
...
Detecting programming language from a snippet
... Might also want to think about where you're splitting the words. In PHP, variables start with $, so maybe you shouldn't be splitting on word bounds, because the $ should stick with the variable. Operators like => and := should be stuck together as a single token, but OTH you probably shoul...