How to get my tabs centered> - html

Question

I have tried making making all the margins 0 auto, I tried changing all the Float: (to center instead of left) this just centered my tabs in the middle of the page going down rather than across. What should I change and where? Do I change just the CSS or the html too?
My blog:
(http://icantaffordmylifestyle.blogspot.com/)
My HTML:
<center>
<div id='mbtnavbar'>
<ul id='mbtnav'>
<li> <a href=/ >| HOME</a>
</li>
<li>
| ABOUT
</li>
<li>| LIFESTYLE
<ul>
<li>| MUSIC</li>
<li>| DIY</li>
<li>| MY ART</li>
<li>| NAIL ART</li>
<li>| BEAUTY</li>
</ul>
</li>
<li>| FASHION
<ul>
<li>| OOTD FASHIONS</li>
<li>| LIFESTYE LOOKS</li>
<li>| FASHION RECAPS</li>
</ul>
<li>| OM-NOMNOM
<ul>
<li>| NOM DIARIES</li>
<li>| NOM-ventures</li>
<li>| LINKS TO MY DRINKS</li>
<li>| HEALTHY NOMS</li>
</ul>
</li>
<li>
| WISH LIST
</li>
<li> | CONTACT
<ul>
<li>| SERVICES</li>
<li>| DISCLAIMER</li>
</ul>
<!-- etc. -->
</li></li></ul></div>
</center>
My CSS:
<center>
#mbtnavbar {
/* background: #ffffff; */
width: auto;
color: #3cd0b6;
margin: 0 auto;
padding: 0;
position: relative;
border-top:0px solid #ffffff;
height: 40px;
vertical-align: text-middle;
}
#mbtnav {
background: #ffffff;
margin: 0;
padding: 0;
}
#mbtnav ul {
float: center;
list-style: none;
margin: 0;
padding: 0;
}
#mbtnav li {
list-style: none;
margin: 0;
padding: 0;
/* border-left:1px solid#ffffff;
border-right:1px solid #ffffff; */
vertical-align: text-middle;
}
#mbtnav li a, #mbtnav li a:link, #mbtnav li a:visited {
color: #3cd0b6;
display: inline-block;
font:bold 24px sue ellen francisco;
margin: 0;
padding: 6px 9px 7px 9px;
text-decoration: none;
}
#mbtnav li a:hover, #mbtnav li a:active {
background: #ffffff;
color: #FC9F35;
display: inline-block;
text-decoration: none;
margin: 0;
padding: 6px 9px 7px 9px;
}
#mbtnav li {
float: left;
padding: 0;
}
#mbtnav li ul {
z-index: 9999;
position: absolute;
left: -999em;
height: 40;
width: 200px;
margin: 0 auto;
padding: 0;
}
#mbtnav li ul a {
width: 200px;
}
#mbtnav li ul ul {
margin: -35px 0 0 161px;
}
#mbtnav li:hover ul ul, #mbtnav li:hover ul ul ul, #mbtnav li.sfhover ul ul, #mbtnav li.sfhover ul ul ul {
left: -999em;
}
#mbtnav li:hover ul, #mbtnav li li:hover ul, #mbtnav li li li:hover ul, #mbtnav li.sfhover ul, #mbtnav li li.sfhover ul, #mbtnav li li li.sfhover ul {
left: auto;
}
#mbtnav li:hover, #mbtnav li.sfhover {
position: static;
}
#mbtnav li li a, #mbtnav li li a:link, #mbtnav li li a:visited {
background: #ffffff;
/* width: 200px; */
color: #3cd0b6;
display: inline-block;
font:bold 19px sue ellen francisco;
margin: 0 auto;
padding: 6px 9px 7px 9px;
text-decoration: none;
z-index:9999;
border-bottom:1px dotted #333;
}
#mbtnav li li a:hover, #mbtnavli li a:active {
background: #ffffff;
color: #FC9F35;
display: block;
margin: 0 auto;
padding: 6px 9px 7px 9px;
text-decoration: none;
}
.tabs-inner .widget #mbtnavbar li a {
border-left:none;
}
.tabs-outer .widget, .section {
margin:0 auto;
}
.tabs-inner {
padding: 0px;
}

Answer 1

Just add display: inline-block; to #mbtnav