body {
	background:#f6f7f8;
        margin:0;
	padding:0
}

@media only screen and (min-width:960px) {
	
.terk {
	width:637px;
	background:#ffffff;
	color:#000000;
	font-family: Arial;
	margin:0 auto;
	margin-top:30px;
	padding:20px;
	border-radius:8px;
}

}

@media only screen and (min-width:669px) and (max-width:959px) {
	
.terk {
	width:637px;
	background:#ffffff;
	color:#000000;
	font-family: Arial;
	margin:20px;
	padding:20px;
	border-radius:8px;
}

}

@media only screen and (max-width:668px) {
	
.terk {
	background:#ffffff;
	color:#000000;
	font-family: Arial;
	margin:20px;
	padding:20px;
	border-radius:8px;
}

}