Unable to space LI elements - html

Question

Can't get padding, margin, or line-spacing to work on any UL/LI/ or A tags in CSS.
Keep in mind, I have a CSS reset stylesheet setup before loading all other style sheets.
Here is my HTML:
<div class="h_logo"><img src="http://dummyimage.com/800x125/000/fff"></div>
<div class="h_navbar">
<nav>
<ul>
<li>Home</li>
<li>Web Design</li>
<li>Advertising</li>
<li>Publishing</li>
</ul>
</nav>
</div>
CSS:
.h_logo{
width:800px;
height:125px;
margin:auto;
display:block;
clear:both;
}
.h_nabar{
width:1000px;
height:125px;
padding:10px;
}
.h_navbar li{
list-style-type:none;
display:table-cell;
vertical-align:middle;
width:100px;
height:50px;
text-align:center;
}
.h_navbar ul{
display:table;
margin:auto;
}
.h_navbar a{
text-decoration:none;
display:table-cell;
border:2px double black;
font-size:18px;
}
JSFiddle

Answer 1

CSS
.h_logo{
width:800px;
height:125px;
margin:auto;
display:block;
clear:both;
}
.h_nabar{
width:1000px;
height:125px;
padding:10px;
}
.h_navbar li{
list-style-type:none;
display:inline-block;
vertical-align:middle;
width:120px;
height:50px;
text-align:center;
border:1px solid #111;
}
.h_navbar ul{
display:block;
margin:auto;
}
.h_navbar a{
text-decoration:none;
display:table-cell;
font-size:18px;
vertical-align:middle;
margin:15px;/*Adjust your margin here*/
width:120px;
height:50px;
}
HTML
Home
Web Design
Advertising
Publishing