how to remove box around search bar

[shayrgob]

all the boxes in oscommerce have a border and a certain color filled inside the box. Well, my ? is: how do i get rid of the box? I just want the serach bar w/ the gif next to it.

 

I basically want it to look like the search bar on this guys site:

 

http://www.evasivemotorsports.com/merchant2/merchant.mvc

 

thanks

[shayrgob]

I've searched for the answer but I couldn't find it. IF someone knows how to do this, please let me know. thanks!