If you have a Joomla! Template and there is a border around the Small PDF, Print and Email icons and you wish to have the border removed and don’t know how, then this tutorial could help you.
Locate the Default templates *.css file, sometimes it’s called template.css. The easiest way to find this is to access the Template Manager in Joomla!. In Joomla! 1.5 it’s under Extentions->Template Manager. Select the current template and click on the Edit Button. And then select Edit CSS. Select the templates *.CSS file and click on edit. Joomla! 1.0.x should be similar just the Template Manager would be under Site->Template Manager->Site Template
At the top or bottom of the file add the following lines
This should remove the border.
Refresh your page and the border should be gone.