body:after {
	content: url(images/logo.png);
	position: fixed;
	top: 3.5em;
	left: 3.5em;
	/*box-shadow: 5px 5px 10px #000; */
}

.reveal code {
	font-size: 70% !important;
}
.reveal h1 {
	font-size: 1.8em !important;
}

.reveal section img { background:none; border:none; box-shadow:none; }

table td {
	font-size: 70% !important;
	vertical-align: top !important;
}