.prova {
	font-family: Tahoma;
	font-size: 12px;
	font-style: normal;
	line-height: normal;
	font-weight: normal;
	font-variant: normal;
	text-transform: lowercase;
	color: #000000;
	background-color: #CCCCCC;
	background-position: center center;
	letter-spacing: normal;
	text-align: left;
	vertical-align: middle;
	word-spacing: normal;
	white-space: normal;
	margin: 1px;
	padding: 1px;
	float: left;
	height: auto;
	width: auto;
	border: 1px #990000;
}