first question is:
<dl>
<dt>Hello</dt>
<dd>Hello all hello all hello all hello all hello all hello all hello all hello all </dd>
</dl>

what the most important you think about these code! why use "dl dt dd " not like this example:

<h3>Hello</h3>
<p>Hello all hello all hello all hello all hello all hello all hello all hello all </p>

the second question is:
for example I've three columns and one row, I used css code for three columns seem like a tabless column that I want to do, if I put some text of paragraph for each column and the result are same height because the long of paragraph all are same, but how to keep same height like liquid column even I add some text. in this case if one of paragraph I add it some text then automatically the div on these columns not same with height, it's very different if I used three column for tabless and all follow for each content... right !!damn
how does it work?

thx

Actually it’s "definition term", slightly different. I agree though, in that context, it doesn’t make sense to use a dl

While we are on the subject, I use a definition list when setting out a sites Terms and Conditions. Is the use of it in this context correct?

Varland - I think that the context needs to be considered.

If the page is a page all about Spiderman, then I think your example is fine. If your page is about several superheroes and descriptions of their abilities and alter-egos then mine works. A combination of the two may be the best solution:

<h1>Super Heroes</h1>

<h2>Spiderman</h2>
<dl>
<dt>Powers</dt>
<dd>Spider Sense, strength, agility, wall-crawling</dd>
<dt>Alter-Ego</dt>
<dd>Peter Parker</dd>
</dl>

<h2>Batman</h2>
<dl>
<dt>Powers</dt>
<dd>Bad-ass, utility belt</dd>
<dt>Alter-Ego</dt>
<dd>Bruce Wayne</dd>
</dl>


Perhaps the definition term could be used twice as well:

<dl>
<dt>Spiderman</dt>
<dt>Powers</dt>
<dd>Spider Sense, strength, agility, wall-crawling</dd>
<dt>Alter-Ego</dt>
<dd>Peter Parker</dd>
</dl>


Perhaps adjust is on to something… How about this:

<dl>
<dt>Spiderman</dt>
<dd>
<dl>
<dt>Powers</dt>
<dd>Spider Sense, strength, agility, wall-crawling</dd>
<dt>Alter-Ego</dt>
<dd>Peter Parker</dd>
</dl>
</dd>
<dt>Batman</dt>
<dd>
<dl>
<dt>Powers</dt>
<dd>Bad-ass, utility belt</dd>
<dt>Alter-Ego</dt>
<dd>Brice Wayne</dd>
</dl>
</dd>
</dl>

Thoughts? I don't even know if it's valid to nest a <dl> in a <dd>… It would render like:

Spiderman

Powers

Spider Sense, strength, agility, wall-crawling

Alter-Ego

Peter Parker

Batman

Powers

Bad-ass, utility belt

Alter-Ego

Brice Wayne

I think we have a winner. On a side note... We are dorks. :)

I love the nested DLs... I'd vote for those. Has anyone confirmed if they are valid?

davist11 has a point about the nested DLs being valid just like nested ULs...