To edit the background of a section, click on it’s handle then go to the Styles tab and click on the Background drop down menu.
For Background type, choose Gradient.
To create a gradient, at least 2 colors are needed. In the window you will see, First color and Second color. Change these colors by clicking on the color box.
Location: Change the location of both colors in the background.
Type: Choose the type of gradient, linear or radial.
Angle: Choose the angle of your gradient in the case of linear and the position of the gradient in the case of radial.
Next up: Background Video