为什么在IE6中使用position:relative时div会消失?

我没有为这个特殊的div应用边距,没有浮动,更令人恼火的是它在不同的页面上工作。以下是css规则的代码:

#prizedraw-fliemore{
    position: relative;
    top: 164px;
    left: -720px;
    z-index: 3000;
}

页面代码为:

<div id="column-left-content"> 
    <p class="height"><strong>Learn more about CAREFREE&reg; pantyliners and discover how they can help you feeling clean, fresh and protected all day long.</strong></p> 
</div> 

<div id="column-right-content"> 
    <p><strong>Free to be me</strong> has been put together for you by the thoughtful makers of CAREFREE&reg;, who design feminine hygiene products to give you all the protection you need.<br /><br /> 

Now that you've reached puberty, there are things you need to know that you might not know already. CAREFREE&reg; has the answers to some of the questions you might just be asking...
</p> 
</div> 

        <div id="car-boxes"> 

            <div class="car-nav"> 
                <div class="container"> 
                    <a class='example5' href="lb/why.html" style="border:none;" rel="group"><img src="images/carefree/pantyliners.png" class="bw" style="border:none;" /></a> 
                    <img src="images/carefree/pantyliners-y.png" class="colour" alt="" /> 
                </div> 
            </div> 

            <div class="car-nav"> 
                <div class="container"> 
                    <a class='example5' href="lb/discharge.html" style="border:none;" rel="group"><img src="images/carefree/discharge.png" class="bw" style="border:none;" /></a> 
                    <img src="images/carefree/discharge-y.png" class="colour" alt="" /> 
                </div> 
            </div> 
            <br /> 
            <div class="car-nav"> 
                <div class="container"> 
                    <a class='example5' href="lb/difference.html" style="border:none;" rel="group"><img src="images/carefree/difference.png" class="bw" style="border:none;" /></a> 
                    <img src="images/carefree/difference-y.png" class="colour" alt="" /> 
                </div> 
            </div> 

            <div class="car-nav"> 
                <div class="container"> 
                    <a class='example1' href="lb/right.html" style="border:none;" rel="group"><img src="images/carefree/right.png" class="bw" style="border:none;" /></a> 
                    <img src="images/carefree/right-y.png" class="colour" alt="" /> 
                </div> 
            </div> 
        </div> 

<div id="prizedraw-car"> 
    <a href="enter.php"><img src="images/prizedraw.png" alt="Read More" /></a> 
</div> 

    </div> 
    <script type="text/javascript"> 
        var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");
        document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));
        </script> 
        <script type="text/javascript"> 
        try {
        var pageTracker = _gat._getTracker("UA-2268991-20");
        pageTracker._trackPageview();
        } catch(err) {}
    </script> 
</body> 
</html>