body{
	margin: 20px;
	font-family: sans-serif	;
}

h1{
	font-family: sans-serif	;
	text-align: center;
	background-color: 	blue;
	color: yellow;
	margin: 	20px;	
}

h2{
		text-align: center;
}

.main-article{
	background-color: 	yellow;
	margin: 	20px;
	padding: 	10px;
}

.sub-article{
	background-color: 	white;
	margin: 	20px;
	padding: 	10px;
}