Theme the taxonomy tags list in the node teaser In my Drupal site I have node teasers that show taxonomy terms. As it stands they are like:

Tags:

Houses

&lt;div class="field field-name-field-tags field-type-taxonomy-term-reference field-label-above"&gt;
  &lt;div class="field-label"&gt;Tags:&lt;/div&gt;
    &lt;div class="field-items"&gt;&lt;div rel="schema:category" class="field-item even"&gt;
        &lt;a datatype="" property="rdfs:label skos:prefLabel" typeof="skos:Concept" href="/tags/houses"&gt;Houses&lt;/a&gt;
    &lt;/div&gt;
  &lt;/div&gt;
&lt;/div&gt;


I cant locate where the &lt;a&gt; anchor tag is being generated. I want to be able to change it to a &lt;button&gt; tag instead of anchor. 

Any ideas how to do this?
Take a look at this tutorial that shows you how to create a custom formatter for specific field types. The taxonomy term field type machine name is taxonomy_term_reference