unwanted navigation stack with browser resize - browser

Question

It's my first time here on the forum. I am a beginner in webdesign and encountered a problem I could not find correct answer to. So far I searched for my answer on mutliple sites but the closest to my problem was this;
Horizontal to vertical menu, on browser window resize.
My problem is as followed: my nav ul list gets stacked when I resize my browserwindow to small....I know it must be possible to let it all stay horizontally on a desktopscreen as it is...like on the page of APPLE store for example. I just have no clue what I am doing wrong.
Underneath is my code....hopefully someone can help me and filter out my errors.
HTML
<div id="navcontainer">
<div id="navlist">
<ul>
<li id="active">Home</li>
<li>About</li>
<li>Services</li>
<li>Gallery</li>
<li>Contact</li>
</ul>
</div>
CSS
body {
margin: 200px 0px 10px 0px;
padding: 0px;
text-align: center;
background-image:url(../images/bg.jpg);
background-repeat: repeat;}
/***** HEADER *****/
#header {
width: 900px;
text-align: center;
font-family: Raleway;
font-size: 30px;
font-weight: bolder;
font-variant: normal;
color: rgba(51,51,51,1);
position: absolute;
display: block;
top: 0px;}
/***** NAVIGATION *****/
#navcontainer {
position: relative;
background-image: url(../images/navbar.png);
background-repeat: repeat-x;
height: 37px;
-o-box-shadow: 0em 0.2em 0.3em 0em rgba(51,51,51,0.8);
-moz-box-shadow: 0em 0.2em 0.3em 0em rgba(51,51,51,0.8);
-webkit-box-shadow: 0em 0.2em 0.3em 0em rgba(51,51,51,0.8);
-ms-box-shadow: 0em 0.2em 0.3em 0em rgba(51,51,51,0.8);
box-shadow: 0em 0.2em 0.3em 0em rgba(51,51,51,0.8);
font-family: Raleway;
display: block;
width: 100%; }
#navlist {
float:left;
position:relative;
left:50%;
padding-top: 1.5px;}
#navlist ul {
float:left; /* IE6 needs this */
position:relative;
left:-50%;
list-style:none;
margin: 0 auto;
font-family: "Palatino Linotype", "Book Antiqua", Palatino, serif;
font-size: 100%;
font-style: normal;
font-weight: bolder;
font-variant: normal;
text-decoration: none;
padding: 0px; }
#navlist li {
float:left;
display: inline;
padding-top: 6.8px;
padding-right: 25px;
padding-bottom: 6.8px;
padding-left: 25px;}
#navlist li a {
text-decoration: none;
color: #424242;
padding-top: 6.8px;
padding-right: 19px;
padding-bottom: 6.8px;
padding-left: 19px;}
#navlist li a:hover {
background-image: url(../images/navbar3.png);
background-repeat: no-repeat;
background-position: bottom;
padding-right: 19px;
paddin-left: 19px;}
#navlist li a:active {
background-image: url(../images/navbar1.png);
background-repeat: no-repeat;
background-position: bottom;
border-width: 1px;
border-top-style: inset;
border-right-style: inset;
border-bottom-style: none;
border-left-style: inset;
border-top-color: rgba(102,102,102,1);
border-right-color: rgba(153,153,153,1);
border-left-color: rgba(153,153,153,1); }
#navlist li a:visited {
text-decoration: none;
color: #424242;
padding-top: 6.8px;
padding-right: 0px;
padding-bottom: 6.8px;
padding-left: 0px;}
#navlist li a:focus {
background-image: url(../images/navbar1.png);
background-repeat: no-repeat;
background-position: bottom;
padding-right: 19px;
padding-left: 19px;
border-width: 1px;
border-top-style: inset;
border-right-style: inset;
border-bottom-style: none;
border-left-style: inset;
border-top-color: rgba(102,102,102,1);
border-right-color: rgba(153,153,153,1);
border-left-color: rgba(153,153,153,1);
text-shadow: 1px 1px #FFF, -0.3px -0.3px #000;}

Answer 1

I had this same problem with my navigation. My nav wasn't structured exactly like the solution below but applying the CSS accordingly worked great.
Here is the solution I found.
http://jsfiddle.net/9x7Am/5/
HTML
<ul id='navbar'>
<li><a href='#'> 1 </a></li>
<li><a href='#'> 2 </a></li>
<li><a href='#'> 3 </a></li>
<li><a href='#'> 4 </a></li>
<li><a href='#'> 5 </a></li>
<li><a href='#'> 6 </a></li>
</ul>
CSS
#navbar {margin:0; padding:0; overflow:hidden; width:100%;}
li {width:100%}
li a {padding: 6px 0; float:left; width:16%; text-align:center;}