R/CSS21/visuren.html#propdef-top" />
        <link rel="help" href="http://www.w3.org/TR/CSS21/visuren.html#position-props" />
		<link rel="match" href="../reference/ref-no-vert-space-between.xht" />

        <meta name="flags" content="ahem" />
        <meta name="assert" content="The 'top' property sets a zero length value in 'em' units." />
        <style type="text/css">
            div
            {
                position: relative;
            }
            #div1
            {
                border