Section with bg image/video

Content is vertically aligned center.

Modifier classes:

min-full-height - section fills 100% of the viewport and stretches to be deeper if necessary.

fixed-bg-img - background image is position-fixed, fills the viewport and does not scroll with the content.

fixed-bg-video - background video is position-fixed, fills the viewport and does not scroll with the content. Video is muted, autoplaying and looping.