Static nav bar does not show in IE or Firefox. Works in Chrome

Question

http://www.digitaldealershipsystem.com/index-top-noside.html
Top blue bar stays static while scrolling.
Works in Chrome, not IE or Firefox.
I've reviewed the code and must be missing something.
Here it is on this test site -- working -- on all browsers
http://chevydigitalsignage.com/
Ideas    

Answer 1

Thank you. I will look at these issues.
I am looking at the CSS, specifically as mentioned -- and there are brackets and no parens
digitaldealershipsystem.com/css.css
.see-plans{
          width:981px;
          height:43px;
          margin:0 auto;
          /*padding: 0 20px;*/
          padding-left:20px;
.top-blue-strip{
          background:#336699;
          height:30px;
          overflow:hidden;
          width:100%;
           position:fixed;
           z-index: 9999;
.see-plans ul#pricing{
          margin:0;
          padding:0;
          float:right;
          margin-right:30px;
.see-plans ul li{
          list-style:none;
          float:left;
          display:block;
          color:#fff;
          margin:0;
          height:30px;
          line-height:30px;
.see-plans ul li a{
          text-decoration:none;
          font: 11px/43px Arial,Helvetica,sans-serif;
          color:#fff;
          margin:0;
          display:block;
          height:30px;
          padding:0 10px;
          text-transform:uppercase;
.see-plans ul li a:hover{
          color:#28669c;
          background:#ddf0f9;
a.digi-logo{
          display:block;
          float:left;
          font: bold 20px Arial, Helvetica, sans-serif;
          color:#b9deff;
          height:20px;
          line-height:30px;
          text-decoration:none;
          /* margin-right: 17px;*/