Jumbotron Background Image

You can add a background image to a jumbotron in a few steps follow them

Step 1: Admin > Setup > Fields. Add a field which is 'featuredImage', of type 'Images' including a label called 'Featured image'.

Step 2: Admin > Setup > Fields > Details tab Set the max permitted images to 1 and then save that field.

Step 3: Admin > Setup > Templates. Add the featuredimage field into a basic-page templet and then save it.

Step 4: now you have to create a templet file to provide the page and then add any CSS linked from the head section.

/site/templates/styles/main.

Step 5: add the page source and check your page.