.pkp_site_name .is_img img {
    max-height:250px;
    max-width: 100%;
}

#headerNavigationContainer {
    height: 100%;
	height: auto;
}

pkp_head_wrapper {
    padding-top: 15%;
	margin: 10px;
}	
	
@media (min-width: 920px)
#headerNavigationContainer {
    height: 100%;
	height: auto;
}	

@media (min-width: 920px)
.pkp_site_name_wrapper {
    height: 100px;
}
@media (min-width: 920px)
.pkp_head_wrapper {
    padding-top: 80%;
}