Cut and add a transparent background picture with horizontal and vertical screens to do this. First, set the scale to 16: 9 landscape format, and you will find that there are black borders on the left and right sides of the video, which can be understood as the default black background.

1, setting the background When creating a work in 16: 9 format, you need to import a work with a horizontal screen, so as to ensure that the black area can be directly blocked when displaying.

2. Click the background button in the lower right corner, which is where our background is displayed. You don't need to light up the video material, you can find the background next to the scale by sliding below.