Backround banner(header)

Hi

I need urgent help, the banner at the top of my website is not functioning correctly, i have entered the following

.banner {
	background-attachment: scroll;
	backround-position: scroll;
	background-size: cover;
	background-repeat: none;
	-webkit-background-size: cover;
	-moz-background-size: cover;
	-o-background-size: cover;
	text-align: center;
	padding:90px 0px;
	color: #fff;
}

and now i am not finding the how to fix the problem.
Please take a look?

Jason 🙂