Ian Sweeney wrote:
The first chapter of 'Eric Meyer on CSS' listing 1.1 has the following CSS
rule
td#advert {width: 234px;}
Could that rule not simply be
#advert {width: 234px;}
Since #advert should refer to a unique identifier, why does the selector
specify the 'td'?
Ian Sweeney
Well, technically, #advert is the same as saying *#advert. Putting the
td in the front just tells the browser you're specifically aiming for a
td element. With ids, there's no real difference.
I believe CSS authors get into doing that because of classes. With
classes, it can make a BIG difference.
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