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,figcaption,figure,footer,header,hgroup,menu,nav,section {
display:block; }
nav ul { list-style:none; }
/* change colours to suit your needs */
mark { background-color:#ff9; color:#000; font-style:italic; font-weight:bold; }
abbr[title], dfn[title] { border-bottom:1px dotted; cursor:help; }