Convert Dropdown menu to vertical - css

Question

I have a drop down menu with css file and i want to convert it into Verctical menu I tried much but i can do that please anyone help me Folowing is my css and html code.anyone please tell me what exactly i am missing due to which menu is not converting
#sddmT
{ margin: 0;
padding: 0;
z-index: 30}
#sddmT li
{ margin: 0;
padding: 0;
list-style: none;
float: left;
font: bold 11px arial}
#sddmT li a
{ display: block;
margin: 0 1px 0 0;
padding: 4px 10px;
width: 60px;
background: #4A617B;
color: White;
text-align: center;
text-decoration: none}
#sddmT li a:hover
{ background: #BDCFD6;
color:#4A617B
}
#sddmT div
{ position: absolute;
visibility: hidden;
margin: 0;
padding: 0;
background: #4A617B;
border: 1px solid #BDCFD6}
#sddmT div a
{ position: relative;
display: block;
margin: 0;
padding: 5px 10px;
width: auto;
white-space: nowrap;
text-align: left;
text-decoration: none;
background: #4A617B;
color: #BDCFD6;
font: 11px arial}
#sddmT div a:hover
{ background: #BDCFD6;
color: #4A617B}
And her is html Code
<ul id="sddm">
<li>ETP
<div id="m1" onmouseover="mcancelclosetime()" onclick="mclosetime()">
<a href="http://dashboard.shakarganj.com.pk/ca/sml1etp.php" target=_blank>ETP - Jhang</a>
<a href="http://dashboard.shakarganj.com.pk/ca/sml2etp.php" target=_blank>ETP - Bhone</a>
</div>
</li>
</ul>
And here is my JS code to clos and open the menu items
<!--
var timeout = 500;
var closetimer = 0;
var ddmenuitem = 0;
// open hidden layer
function mopen(id)
{
// cancel close timer
mcancelclosetime();
// close old layer
if(ddmenuitem) ddmenuitem.style.visibility = 'hidden';
// get new layer and show it
ddmenuitem = document.getElementById(id);
ddmenuitem.style.visibility = 'visible';
}
// close showed layer
function mclose()
{
if(ddmenuitem) ddmenuitem.style.visibility = 'visible';
}
// go close timer
function mclosetime()
{
closetimer = window.setTimeout(mclose, timeout);
}
// cancel close timer
function mcancelclosetime()
{
if(closetimer)
{
window.clearTimeout(closetimer);
closetimer = null;
}
}
// close layer when click-out
//document.onclick = mclose;
// -->
upDate
I want like this

Answer 1

Try this:
#sddmT li { margin: 0;
padding: 0;
list-style: none;
position:static;
font: bold 11px arial; }

Answer 2

I know this is an old post, but I couldn't help noticing you have some whitespace between your main and sub-menus. Wrapping the submenus with the item that they point to will work, but you need to eliminate the whitespace, or you'll trigger the close/exit function every time you go to open the menu.
margin: 0 1px 0 0 vs margin:0.