rops" />
        <meta name="flags" content="" />
        <meta name="assert" content="The 'bottom' property sets a positive zero length value in pixels." />
        <style type="text/css">* { margin: 0; padding: 0 }
            #div1
            {
                border-top: 5px solid orange;
                position: relative;
            }
            #div2
            {
                border-top: 5px solid blue;
                bottom: +0px;
                position: relative;
           