@media only screen and (max-width: 1400px) {
	#baground{
		height: 400px;
}
}
@media only screen and (max-width: 1100px) {
	#baground{
		height: 350px;
}

}
@media only screen and (max-width: 800px) {
	#baground{
		height: 300px;
}