html, body, div, iframe,
h1, h2, h3, h4, h5, h6, p, pre,
a, code, img, dl, dt, dd, ol, ul, li, label, table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, 
menu, nav, section,audio, video {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font: inherit;
    vertical-align: baseline;
    text-decoration: none;
    color: inherit;
    list-style-type: none;
}