Blank Ul not containing li shows padding and margin in IE

Question

I have dynamically generated dropdown menu. On mouse hover It shows blank space if one tab do not have dropdown options.

Answer 1

first create a css rule for all uls like:

ul{
margin: 0; padding:0; display: block;
}

and then if the ul is empty then try to clear any space inside the ul tag bcoz sometime browser will show an empty line space when dere is a line break in the code without using br tag.. mainly IE..