Header/Banner on all pages beside Home on Streamline theme

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I am using the Streamline theme, still under construction. I have a video on my home page.  All other pages have a huge blank space before content when viewing from a computer (mobile is fine).  If I add a header to those pages, it changes my home page header.  How do I either 1) add a header to all pages except for home or 2) decrease the white space on all pages except for header. Ive attached a screenshot of my home page vs my collection page. Thanks!