Question about Testimonials

I found where to enable Testimonials in the theme options. The testimonials appear and the slider works, which is great, but the testimonials appear at the top of the page, above the page title and below the header image. How can I move the locations of the testimonials? Must I write custom CSS to change the location of the testimonials or must I edit the theme, itself? If I must edit the theme, itself, must I create my own child theme so I can still install theme updates? Thanks in advance!