Making a navigation bar that includes a search bar

Question

I'm working on a navigation bar for my website, and I want to add a search box to it. I'm using a text-field, and I've positioned it with CSS so that it's aligned perfectly, except depending on the resolution, it shifts around. How can I make sure it stays in one position? For reference, it's kind of like on Apple's website except bigger.

Here's the navbar part of my HTML code:

<img id="navbar" src="images/Navbar.png" alt="Navigation"/>
<form method="get" action="" class="search">
    <input class="msb" maxlength="2048" id="searchBox" size="40" title="Search" value="" lang="en" />
    <input value="Search" id="submitButton" type="submit" />
</form>
<ul id="navlinks">
    <li id="navHome"><a href="index.php">Home</a></li>
    <li id="navSubmit"><a href="submit.html">Submit</a></li>
    <li id="navArchive"><a href="archive.html">Archive</a></li>
    <li id="navApps"><a href="apps.html">Apps</a></li>
    <li id="navContact"><a href="contact.html">Contact</a></li>
</ul>

and here's my CSS (note that the navlinks aren't lined up either so the #navlink section isn't really relevant:

div#adholder
{
    width:728px;
    height:90px;
    align:center;
}

ul#navlinks
{
    postition: absolute;
    right: 280px;
    margin:20px;
    padding:0;
    list-style:none;
    width:525px;
}

#searchBox
{
    position: fixed;
    left: 890px;
    top: 250px;
    height: 30px;
}
/*#searchBox
{
    position:absolute;
    right:150;
    top:150;
    width: 300px;
    height: 35px;
}*/

#submitButton
{
    display: none;
}
ul#navlinks li
{
    display: inline;
}

ul#navlinks li a
{
    text-decoration: none;
    padding: 5px 0;
    width:100px;
    background: none;
    color:#000;
    float:left;
}

(For some reason the code formatter isn't working...)

This is how it looks on my 1366x768 laptop screen:

Answer 1

use position:absolute; and set all four parameter top: bottom: right: left: in style