/TR/CSS21/box.html#border-width-properties" />
        <meta name="flags" content="" />
        <meta name="assert" content="The 'border-right-width' property supports a minimum length value in millimeters that that has a plus sign before it." />
        <style type="text/css">* { margin: 0; padding: 0 }
            div
            {
                border-right-style: solid;
                border-right-width: +0mm;
                border-right-color: red;
                height: 1in;
           