Registration History Resultbox table overflow

There seems to be something wrong in the com_eventbooking\com_eventbooking\site\history\tmpl\default.php

The table has 7 columns. On the right side, I have an overlay, caused by a "search" field , which overlays the EB_AMOUNT and EB_ID. So I assume it is in line 13.
As for that search there is no specific EB css markup, it will use the template css markup...
Please check and let me know if there is a workaround available...

Thank you!

... I have removed line 11. It looks ok now but is only a workaround. May be you can solve the problem by adding a markup in the style.css which will not use the template .css markup for a search box?

What would be necessary to adjust it, rather than deleting that line? Please let me know, I would like to have that searchbutton include. Thks!