  <meta name="assert" content="Inline element width is determined by the containing block and any floated elements." />
        <style type="text/css">* { margin: 0; padding: 0 }
            #div1
            {
                background: orange;
                font: 1in/1em Ahem;
                height: 2em;
                width: 3em;
            }
            #div2
            {
                background: blue;
                float: right;
                height: 1em;
                wid