How do I add a placeholder image for the mobile version of my website?

How do I add a placeholder image for the mobile version of my website?

To add a placeholder image, select the Manage Your Site tile.



Hover over the block where you want to add the image and select the gear icon. 



Select the Media icon.



Select “Advanced Settings” to view additional settings.



Select “Mute Sound” to mute the video, change the amount of time each image/video appears, and update the mobile image if using a video only background.