My apologies for the newbie question; I'm new to this software. I'm making a youtube 1080p (1920x1080) video. The video clips that I'm putting in this video are 1280x720. However, in the final version, I see the video clips don't fill the whole screen (there is a black layer around the clips. I've attached a picture of it.) How can I make the video clips to fill the whole screen?
Thank you so much!
Editing, Effects and Titles, Export, How to, User interface or workspaces