Centering the navigation horizontally.

Removing the “float” from here seems to work:

.main-navigation ul {
    float: left;
    list-style: outside none none;
    margin: 0;
    padding: 4px 12px;
}

Thanks, didn’t seem to work for me, though.

Here’s an excerpt straight from my child stylesheet:

.main-navigation {
	font-family: 'Roboto', sans-serif;
	clear: both;
	display: block;
	padding: 0.1em;
	border-radius:0.4em 0.4em 0 0;
	/*background-color:#AB8342;*/
	margin-top: 5px;
	margin-bottom: 0;
	max-width: 1049px;
	-webkit-box-shadow: 0px 4px 2px 0px inset rgba(50, 50, 50, 0.50);
	-moz-box-shadow:    0px 4px 2px 0px inset rgba(50, 50, 50, 0.50);
	box-shadow:         0px 4px 2px 0px inset rgba(50, 50, 50, 0.50);
	border-top: 1px solid #CCCCCC;
	background-image:url(images/main_bg_leather.jpg);
	background-repeat:repeat-x repeat-y;
}
.main-navigation:after {
	clear: both;
	content: "";
	display: block;
}
.main-navigation ul {
	list-style: outside none none;
	margin: 0;
	padding: 4px 12px;

}
.main-navigation li {
	float: left;
	margin: 0;
	position: relative;
}
.main-navigation a {
	color: #FFF;
    display: block;
    font-size: 1.4rem;
	font-size: 14px;
    font-weight: normal;
    margin-right: 1em;
    text-decoration: none;
	text-transform: uppercase;
	padding: 0.4em 0.6em .1em .6em;
	word-spacing: 2px;

Okay, try changing it to this:

.main-navigation ul {
	list-style: outside none none;
	margin: 0;
	padding: 4px 12px;
  display: table;
  margin: 0 auto;

}

BTW, I can see all the CSS on your site – no need to post it here.

Works perfectly. Thanks!