Here is the template section for current standard tabs:

<td class="bareTabCurrent"><a href="#TAB_LINK#" class="bareTabLink">#TAB_IMAGE##TAB_LABEL#</a>#TAB_INLINE_EDIT#</td>


and here is the same for non-current standard tabs:

<td class="bareTab"><a href="#TAB_LINK#" class="bareTabLink">#TAB_IMAGE##TAB_LABEL#</a>#TAB_INLINE_EDIT#</td>