dropdown css tweaks needed

hi guys
ive managed to get my dropdown child pages to show by adding:

#menu .ddsmoothmenu li:hover ul {
 visibility: visible;
 display: block;
 top: 20px;
}

however, the dropdown menu appears too tight underneath the main menu parent page button ‘Accident Claim Types’ which makes the text in the button ‘bold’ when i hover over the child pages, i have tweaked the above css by adding top: 25px; which DOES remedy this but then the child pages dont appear smoothly and the hover effect doesn’t work

can any css experts see where i’m going wrong, it’s literally a couple of pixels worth of editing

http://globalaccident.net

[Please continue in your existing thread on this issue:
http://ww.wp.xz.cn/support/topic/dropdown-menu-not-dropping-down-to-show-child-pages?replies=10 ]