Gap between menu and sub-menu

There is a space between main menu and subpages which messes up the navigation (as I move the mouse away from menu submenu disappears). I’ve seen similar topics and usually this was caused by margin determined in the style sheet – I tried changing some variables but could not find which line causes this. Could someone help me to spot it?

the menu:

/*Page menu*/

#botmenu{
	height:60px;
	margin:20px 0px 0px 0px;
	font-family:monotype corsiva,Arial, verdana,Century gothic, sans-serif;
	float:right;
	}

#submenu {
	margin: 0px 0px ;
	width:auto;
	padding:0px 0px;
	}

#submenu ul {
	width: 100%;
	float: left;
	list-style: none;
	margin: 0;
	padding: 0 0px;
	}

#submenu li {
	float: left;
	list-style: none;
	margin: 10px 20px 0px 0px;
	padding: 0;
	color: #B40404;
	font-weight: bold;
	font-size: 28px;

	}

#submenu li a {
	color: #B40404;
	display: block;
    margin: 0;
	padding: 12px 10px 12px 10px;
	text-decoration: none;
	position: relative;
	font-weight: bold;
	}

#submenu li a:hover, #submenu li a:active, #submenu .current_page_item a  {
	color: #F78181;
	font-weight: bold;

	}

#submenu li a.sf-with-ul {
	padding-right: 10px;
	}	

#submenu li li a, #submenu li li a:link, #submenu li li a:visited {

	font-size: 20px;
	color: #B40404;
	text-shadow:none;
	width: 148px;
	margin: 0;
	padding: 0px 10px;
	line-height:35px;
	border-bottom:1px solid #222;
	border-top:1px solid #111;
	border-left:1px solid #111;
	border-right:1px solid #222;
	text-transform: none;
	position: relative;
	background:#ffffff;
	}

#submenu ul ul li:first-child{
	border-top:none;

}

#submenu ul ul li:last-child{
	border-bottom:none;

}	

#submenu li li:last-child{
	border-bottom:none;
}

#submenu li li a:hover, #submenu li li a:active {
	background:#ffffff;
	color: #F78181;
	}

#submenu li ul {
	z-index: 9999;
	position: absolute;
	left: -999em;
	height: auto;
	width: 170px;
	margin: 5px 0px;
	padding: 5px 0px;
	background:#fff;
	border-radius: 3px;
	-moz-border-radius: 3px;
	-webkit-border-radius: 3px;
	}

#submenu li ul a {
	width: 150px;
	}

#submenu li ul a:hover, #submenu li ul a:active {
	}

#submenu li ul ul {
	margin: -15px 0 0 15px;
	}

#submenu li:hover ul ul, #submenu li:hover ul ul ul, #submenu li.sfHover ul ul, #submenu li.sfHover ul ul ul {
	left: -999em;
	}

#submenu li:hover ul, #submenu li li:hover ul, #submenu li li li:hover ul, #submenu li.sfHover ul, #submenu li li.sfHover ul, #submenu li li li.sfHover ul {
	left: auto;
	}

#submenu li:hover, #submenu li.sfHover {
	position: static;
	}

the navigation section has only this:

/* The Navigation */

#tnavigation{
	margin:10px 0px 0px 0px;
	padding:5px 0px;

}