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Most of you Mac users are probably aware of the screen capture features that are part of Mac OS X: the Grab utility, the keyboard shortcut commands and the screencapture command in Terminal. No?

Let’s look at the options:

Grab

The Grab application (Applications->Utilities->Grab.app) is a free, built-in screen capture program in Mac OS X that allows you to capture an area with the selection tool, a window, the whole screen and even the whole screen in Timed mode. The last option gives you time to move items or whatever for 10 seconds before taking the snapshot.

Keyboard Shortcuts

Keyboard shortcuts are a very fast way to snap screen captures once you memorized them:

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Here’s a cool CSS2 selector that is often overlooked or not understood: *

It’s called the universal selector and is very powerful. It acts like a wildcard, is denoted by an asterisk and affects all available elements.

The universal selector can be combined with other selectors to style the descendants of a particular element or skip a level of descendants. This can be particularly useful when you have to support some older browsers that don’t implement CSS the same as other browsers – such as IE 6.

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