The page "Header Image" field populates the header background image. If a header video is present this image will be the preview image while the video is loading and also serves as the fallback for devices that do not support video.
Images should be 2,732px wide by 1,100px tall. If the header text field is used for the page 2,732px wide by 1,556px tall is the recommended image size.
If the page "Header Overlay" field is checked the header area will display the site overlay options.
The monklet "Header Monklet - Featured Article Video" can be used in the Header Text field and will display the most recent article published as featured. Within the article, the "Alt Title" field is used for the heading, and the button text is required for the button link.
Using the field "Header Background Video (mp4/h264)" will replace the background image with a background video. The video must be MP4/H264 formatted video and should have a ratio of 16:9.
*NOTE - This is a looping/muted background video so the video should be kept short in size/length (under 30 seconds).