• css for mobile

@media all and (max-width: 500px) {
  #foo { position: static; }
}
@media (max-width: 800px) {
  #foo { position: static; }
}

@media only screen and (max-device-width:480px){
body{ background-color:red;
}

• media type 사용법

@import url("print.css") print;

@media (max-width: 800px) {
  #foo { position: static; }
}

@media print {
  font-size:12pt;
}

<link rel="stylesheet" type="text/css" media="screen" href="screen.css" />

• CSS reset

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, font, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td {
	margin: 0;
	padding: 0;
	border: 0;
	outline: 0;
	font-size: 100%;
	vertical-align: baseline;
	background: transparent;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}

/* remember to define focus styles! */
:focus {
	outline: 0;
}

/* remember to highlight inserts somehow! */
ins {
	text-decoration: none;
}
del {
	text-decoration: line-through;
}

/* tables still need 'cellspacing="0"' in the markup */
table {
	border-collapse: collapse;
	border-spacing: 0;
}

• 자간 조정하기

letter-spacing:5pt