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CSS Short Hands

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12 pointsrickharrison3 comments

W3Schools (http://www.w3schools.com/) is undoubtedly a better and more thorough resource.

I was rather underwhelmed by this article. Shoddy editing (is it "short hand" or "shorthand"?), oversight in code (missing the "margin:" declaration in the first tip), and unnecessary digs at Internet Explorer ("Of course, IE needs a little help ..."). Plus, many things on this list are not shorthand. #10 explains how to implement transparency, #11-15 are pseudo elements, and #18-20 are CSS3 properties.

Are there any speed/performance implications for doing:

    * { margin:0; padding:0; }

Every single element rendered would be affected by this, especially if there are more rules in the global wildcard like font-family, border, color etc.

CSS rule declarations of this kind are very, very fast; when rendering without your rules the browser is simply using a different default.css file internally, so it makes no difference (less the time taken to load the CSS file itself).

Nearly every page on Yahoo uses an expanded form of the above to reset and standardize margins, borders and padding across browsers. In fact, we give it away for anyone to use:

http://developer.yahoo.com/yui/reset/

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