How to center navigation bar in UL? - css

Question

Tried display: inline-block; text-align: center; and many things from the Internet, but nothing helped.
#nav{
width: 100%;
float: left;
margin: 0 0 3em 0;
padding: 0;
list-style: none;
background-color: #C9C9C9;
border-bottom: 5px solid #ddd;
border-top: 1px solid #ccc; }
#nav li {
list-style: none;
float: left; }
#nav li a {
display: block;
padding: 5px 5px;
font-size: 13px;
text-decoration: none;
color: #000;
border-right: 1px solid #ccc; }
#nav li a:hover {
color: #fff;
background-color: #000;
-moz-border-radius: 3px; -webkit-border-radius: 3px; -khtml-border-radius: 3px; border-radius: 3px; }
HTML:
<ul id="nav">
<?php wp_nav_menu('menu=header_menu&container=false'); ?>
<div class="clear"></div>
</ul>
It looks like this:
... and I don't know how to center it.

Answer 1

basic is :
ul {
margin:0;
padding:0;
list-style-type:none;
text-align:center;
}
li {
display:inline-block;
}
Note that if <li> floats, you lose :)
http://jsfiddle.net/KWG2j/
then , if you need to center ul with fluid width: go one step higher in html.
http://jsfiddle.net/KWG2j/1
nav {
text-align:center;
}
nav ul {
margin: 0;
padding: 0;
display:inline-block;
list-style: none;
background-color: #C9C9C9;
border-bottom: 5px solid #ddd;
border-top: 1px solid #ccc;
}
nav li {
display:inline-block;
}
nav li a {
display: block;
padding: 5px 5px;
font-size: 13px;
text-decoration: none;
color: #000;
border-right: 1px solid #ccc;
}
#nav li a:hover {
color: #fff;
background-color: #000;
-moz-border-radius: 3px;
-webkit-border-radius: 3px;
-khtml-border-radius: 3px;
border-radius: 3px;
}

Answer 2

Set a fixed width on your UL, then adjust it's margin as
margin: 0 auto;
This will apply equal margins to both the left and right of block elements that have a definite width.

Answer 3

http://jsfiddle.net/Be4Q2/
#nav {
margin: 0;
padding: 0;
text-align:center;
list-style: none;
background-color: #C9C9C9;
border-bottom: 5px solid #ddd;
border-top: 1px solid #ccc;
}
#nav li {
display:inline-block;
}
#nav li a {
display: block;
padding: 5px 5px;
font-size: 13px;
text-decoration: none;
color: #000;
border-right: 1px solid #ccc;
}
#nav li a:hover {
color: #fff;
background-color: #000;
-moz-border-radius: 3px;
-webkit-border-radius: 3px;
-khtml-border-radius: 3px;
border-radius: 3px;
}
<ul id="nav">
<li>Home</li>
<li>Projects</li>
<li>Contact</li>
<li>About</li>
<div class="clear"></div>
</ul>