I made several design changes to my SP online site. Everything went smoothly 'till I encountered the search page osssearchresults.aspx
I'm aware that osssearchresults.aspx is a server page and doesn't let you edit in browser.
However, light visual changes(CSS) need to be made in order to keep the same pattern throughout the site (functionality will stay unchanged).
My question is, how to accomplish that requirement? What do I need to change? Must I use SPD for that?
All of this happens in a site level and not a site collection.