1. Set a Dynamic Panel to 100% Wide in Properties pane.
2. Open the Dynamic Panel’s first State and set a Back Image (or Back Color) in the State Formatting pane (pane located where Page Properties usually is).
3. If using Back Image, depending on the height and width of the Image chosen and your expected browser width range you will want to play with the Repeat options:
- Use Stretch to Contain if you can put this Widget at the bottom of the z-order and make the Height really massive (10,000 pixels if this will be viewed on larger screens). This will maintain the full image and will stretch to the full width.
- Use Stretch to Cover if you want to make sure the Image is always the full browser width regardless of how much of the image is shown vertically.
See It Live: 100PercentWideBackgroundDynamicPanel
RP File: 100PercentBackgroundDynamicPanels.rp (885 KB)
This shows Back Image, but Back Color is right above it: