/* General */
body {
	margin: 4em 0;
	font-family: Verdana, Helvetica, Arial, sans-serif;
	font-size: 12px;
}

.invisible { display: none; }

/* Titles and paragraphs */
h1, h2, h3, h4, h5, p { margin: 1em 0; }
h1 { font-size: 2em; }
h2 { font-size: 1.4em; }
h3 { font-size: 1.2em; }
h4 { font-size: 1em; }
h5 { font-size: 0.9em; }

/* Miscellaneous */
acronym {
	border-bottom: 1px dotted;
	cursor: help;
}

a img {
	border: none;
}