Resizing max header height, linking to home page and removing 'uncategorized'

Hey guys,
I’m trying to change the header height from 550px to 300px, because I have a custom header and the layout keeps stretching it. I’ve changed the following but it’s not worked;

‘height’ => apply_filters( ‘bavotasan_header_image_height’, 300 ),

and

.home #header-wrap {
height: 300px;
}
@media (max-width: 768px) {
.home #header-wrap {
height: 300px;

Any ideas?

I’d also like to make the header link back to my home page (www.flymagpiefly.com) and remove the ‘uncategorized’ button.

Thanks.