In one of my subs, I need to create a new CSS element, such as: 
.p {text-align: left;}

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The problem is with the element name (the '.p' in the example). Because I have many predefined CSS elements, I need to make sure that my element name is original and not already in use. The sub contains the predefined CSS in a heredoc.

Also the new element name correlates with a value passed into the sub. So if someone says: 

some_sub(foo, bar);

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Then in some_sub, I need to create distinct CSS elements that somehow correlate to 'foo' and 'bar' respectively. (But I can't name them '.foo' and '.bar')

How best to do this?

In reply to Dynamically creating CSS elements by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
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