del, ins, var, article, aside, canvas, details, figcaption, figure, footer, header, hgroup, menu, nav, section, summary, time, mark, audio, video {margin:0;padding:0;border:0;outline:0;font-size:100%;vertical-align:baseline;background:transparent;}
article, aside, details, dialog, figure, figcaption, footer, header, hgroup, legend, nav, section, menu {display: block;zoom: 1;}
ins {background-color:#ff9;color:#000;text-decoration:none;}
mark {background-color:#ff9;color:#000; font-style:italic;font-weight:bold;}
del {text-decoration: line-through;}