how to delete this space

I want to delete this space below the nav bar..I deleted the searchbox but this doesnt solve the problem is there a code to delete this space?.

Could you tell us the version of your forum? 

phpbb3
my forum link: http://topyouth.gamerzfun.com

Don't want this forum , I need the forum with your theme ...

this is the link: http://testforum.forumegypt.net/

Code:

#search-box {
float: right;
margin-right: 5px;
margin-top: -25px;
white-space: nowrap;
}

Add that in your CSS.

It works but there is a line under navbar

Code:

ul.navlinks{border-bottom:none!important;}

thanks solved you can lock the topic.