To supplement my colleague’s suggestion above, the css for adjusting your menu item padding can be found within
templates/ja_drimia/ja-menus/ja_cssmenu/ja_sosdmenu.css
line 82
#ja-cssmenu li a {
border-left: 1px solid #666666;
border-right: 1px solid #333333;
color: #CCCCCC;
display: block;
font-size: 115%;
font-weight: bold;
line-height: 44px;
margin: 0;
padding: 0 20px;
text-decoration: none;
}
You can play around with the padding number to see different results.
An alternative method would be to, perhaps reduce your menu item font size and/or adjust the spacing within your site logo – to allow for some additional space.