CSS list item width/height does not work

Question

I tried to make a navigation inline list. You can find it here: http://www.luukratief-design.nl/dump/parallax/para.html

For some reason it does not display the widt

Answer 1

I had a similar issue trying to fix the item size to fit the background image width. This worked (at least with Firefox 35) for me :

.navcontainer-top li
{
  display: inline-block;
  background: url("../images/nav-button.png") no-repeat;
  width: 117px;
  height: 26px;
}