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Difference between margin and padding?

What exactly is the difference between margin and padding in CSS? It really doesn't seem to serve much purpose. Could you give me an example of where the differences lie (and why it is important to know the difference)? ...
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Limit number of characters allowed in form input text field

...work fine. So say if you wanted the values to be between 1-50 you could or all positive numbers, etc. – b3verelabs Dec 17 '11 at 14:34 ...
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.htaccess mod_rewrite - how to exclude directory from rewrite rule

...ries on my server from these rules, so they can become accessible. For now all requests are sent to index.php file. 6 Answ...
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How do I determine the size of my array in C?

... It should be the case with all compilers, since the results of sizeof is defined as a compile-time constant. – Mark Harrison Sep 22 '13 at 5:39 ...
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When should one use a 'www' subdomain?

...bility to set a cross-subdomain cookie. This seems evident, but this means allowing authenticated users to move between your subdomains is more of a technical challenge. So ask yourself some questions. Do I set cookies? Do I care about potentially needless bandwidth expenditure? Will authenticated ...
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Get the position of a div/span tag

...n will tell you the x,y position of the element relative to the page. Basically you have to loop up through all the element's parents and add their offsets together. function getPos(el) { // yay readability for (var lx=0, ly=0; el != null; lx += el.offsetLeft, ly += el.off...
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How can I save application settings in a Windows Forms application?

...e the exe is instead of the one in the user's AppData folder. No, not generally good, but I use it during development to use the same settings from compile to compile (w/o it, they go new unique user folders with each compile). – minnow Sep 13 '12 at 22:55 ...
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Bootstrap 3 - Why is row class is wider than its container?

... In all grid systems, there are gutters between each column. Bootstrap's system sets a 15px padding on both the left and the right of each column to create this gutter. The issue is that the first column should not have half a g...
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Unfortunately MyApp has stopped. How can I solve this?

... put FATAL EXCEPTION (i.imgur.com/HpELhaU.png) so in this Box you can read all Exceptions which are throw by your application. With this you don't need to clear logcat and do the crash again. I think Android Studio have this option too. – Marco Acierno Jun 14 '...
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Keep only date part when using pandas.to_datetime

...fault represents the dates with datetime64[ns] even though the dates are all daily only. I wonder whether there is an elegant/clever way to convert the dates to datetime.date or datetime64[D] so that, when I write the data to CSV, the dates are not appended with 00:00:00 . I know I can conver...