.a1 {
	font-family: "Arial", "Helvetica", "sans-serif";
	font-size: 20px;
	color: #FFF;
	line-height: 40px;
}
.a2 {
	font-family: "Arial", "Helvetica", "sans-serif";
	font-size: 20px;
	color: #000000;
	line-height: 40px;
}
.a3 {
	font-family: "Arial", "Helvetica", "sans-serif";
	font-size: 30px;
	color: #000000;
	line-height: 40px;
}
.a4 {
	font-family: "Arial", "Helvetica", "sans-serif";
	font-size: 50px;
	color: #000000;
	line-height: 40px;
}