When to add classes, when to add selectors?

Question

Considering this:

<a class="details" href="#">more&hellip;</a>
...
<input type="submit" value="Gogogo">

Say that both should have a very similar appearance, because this is what the designer wants. You do it:

<a class="fancybutton" ...
<input class="fancybutton" ...

.fancybutton { /* ... */ }

or that?

a.details, .someform input[type="submit"] { /* ... */ }

I am struggling with this problem and I am not sure where to go. It seems to be a choice between having a really clear style sheet versus pretty markup that isn't cluttered with classes.

When do you pick one over the other?

Answer 1

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Answer 2

IE6 input[type=submit], , , .

Answer 3

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Answer 5

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ul li {color: blue;}
ol li {color: red;}

  

; :

.unordered-list-item {color: blue;}
.ordered-list-item {color: red;}

If you should use a child selector, prefer child selectors, which at least only require evaluating one additional node, and not all intermediate nodes to the ancestor.