摘要:        
1. padding:What would happen if you used either ems or percentages for the padding values?The two units have slightly different effects: the em unit scales the padding accordingto the size of the font of the content, while the percentage unit scalesthe padding (and margin)according to the width or h    阅读全文
        
            posted @ 2012-07-21 20:12
dragonstreak_1
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