adding-properties" />
        <meta name="flags" content="ahem invalid" />
        <meta name="assert" content="The 'padding-left' property handles a minimum minus one length value in 'ex' units." />
        <style type="text/css">* { margin: 0; padding: 0 }
            div
            {
                font: 20px/1 Ahem;
                height: 1in;
                width: 0;
            }
            #div1
            {
                border-left: 5px solid blue;
                padding-left: