html span tag within span tag

Is it ok to have a span tag within another span tag? I need to format the digits 开发者_JAVA百科within a span tag with jquery.

<span id="tprice">The price is: $95</span>

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Yes, it's OK. There's no rule which forbids, nor discourages this practice.

If that piece of HTML occurs more than once, replace id="tprice" by class="tprice", because the ID must only occur once.

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Sure, you could even put a span tag within a span tag within a span tag ;).

This is actually pretty common and required in some instances such as when dealing with microformats/microdata.