Centering table cell inside wrapper table - 3 column, fluid layout - css

Question

My third attempt recoding my site for a responsive layout based on more suggestions from Stack Overflow members. This time I'm using a display:table / display:table-cell setup to center a page wrapper whose height is controlled by content and a sticky footer.
A member suggested a basic layout that works (thanks!) BUT I cannot center my inline wrapper inside my page wrapper if I use a width less than 100%. It forces the inline-wrapper to the right of the page-wrapper.
I've tried margins, padding and text-align. I could probably hack it with the "center" tag but I want my code to be semantic.
This is a condensed view of my code - I'm not sure if I'm doing something wrong, missing syntax (I forgot a comma earlier that cost me 30mins troubleshooting), it needs a hack for ie10 and Opera or whatever.
<div id="page-wrapper>
<div id="logo"><img /></div>
<div id="inline-wrapper">
<div id="top-content">
<div id="left"><img /></div>
<div id="center">content blah blah</div>
<div id="right"><img /></div>
</div>
<div id="nav-menu"><ul><li><img /></li></ul></div>
<div id="main-content">
<div id="left"><img /></div>
<div id="center">content blah blah</div>
<div id="right"><img /></div>
</div>
</div></div>
<div id="footer"></div>
html, body, #page-wrapper, #inline-wrapper, #top-content, #main-content {
height:100%;
width:100%;
margin:auto;
}
#page-wrapper {
height:100%;/* to show footer */
width:70%;
position:relative;
display:table;
table-layout:fixed;
border:solid;
}
#logo {
width:100%;
top:.75%;
z-index:99;
position:absolute;
}
#logo > img {
width:100%;
}
#inline-wrapper {
position:relative;
display:table-cell; <-- /* I removed this */
width:90%;
margin:auto;
background-color:#fff;
padding-bottom:1%;
}
#top-content, #main-content {
display:table;
width:98%;
border-collapse:collapse;
}
#top-content {
height:60%;
}
#right, #left, #center {
display:table-cell;
}
#left {
background-color:#CC0000;
width:14%;
}
#left img {
width:100%;
height:100%;
}
#right {
background:#0600ff;
width:14%;
}
#center {
width:72%;
background:#ccc;
}
#nav-menu {
width:100%;
margin:0 auto;
text-align:center;
}
#nav-menu li {
color:#fff;
margin:auto;
display:inline-block;
background-color:#000000;
list-style-position:inside;
border:1% solid #ffffff;
padding:.75%;
width:12.5%;
height:31%;
vertical-align:top;
}
#nav-menu li:hover {
opacity: .55;
filter: alpha(opacity=55);
}
#nav-menu li img {
height:100%;
width:100%;
}
#footer {
width:100%;
height:250px;
background-color:#000;
border-top:solid;
}

Answer 1

Try clossing the id there: <div id="page-wrapper>. Change it to this: <div id="page-wrapper">