Q: Change this with Jquery Is it possible to use Jquery to get these classes and change the font size? Note that the tags keep changing numbers. I can also not edit the input. 
<a class="tag-link-7" title="1 topic" style="font-size: 8pt;">Akira Kurosawa</a>
<a class="tag-link-8" title="1 topic" style="font-size: 8pt;">Ben Jones</a>


A: Something like $('a[class^="tag-link"]').css('fontSize', '1.1em') should do the trick. a[class^="tag-link"] selects all links with their class starting with "tag-link".

A: you can use attribute filters on class attribute
jQuery('a[class^="tag-link"]').css('fontSize',xx);

A: You can do something like this:
$("a[class^=tag-link]").css("fontSize",20);

Provided that your class "tag-link-*" comes first in the code. if not
$("a[class*=tag-link]").css("fontSize",20);

Note that ^ changed to *. Be sure to check this selector, as it may get you more that you want.

A: Yes. You can use jquery's .HasClass() method to check if an element has a specific class
