* { box-sizing: border-box }
html, body, div, span, iframe, h1, h2, h3, h4, h5, h6, p, pre,
a, img, sub, sup, b, u, i, dl, dt, dd, ol, ul, li,
fieldset, form, label, legend, table, caption, tr, th, td,
article, aside, canvas, figure, figcaption, footer, header,  
main, menu, nav, section, summary {
	margin: 0;
	padding: 0;
	border: 0;
	color: inherit;
}
menu, ul { list-style: none }
a { text-decoration: none }
table { border-collapse: collapse }