-size-props" />
        <meta name="flags" content="ahem" />
        <meta name="assert" content="The 'font-size' property sets a positive nominal length value in 'em' units." />
        <style type="text/css">* { margin: 0; padding: 0 }
            div
            {
                font: 20px/1 Ahem;
                position: relative;
            }
            #div2
            {
                font-size: +6em;
                width: 1in;
            }
            #div3
            {
    