Issue Summary

On the JSW Timeline, the dates on the timeline header are obscured in fullscreen mode when a banner is present.

Steps to Reproduce

1. Open the JSW timeline on a Jira instance with a banner present
2. Click the fullscreen button

Expected Results

Should be able to see all timeline elements - page should not be obstructed by the banner

Actual Results

Timeline elements sit behind the banner

Workaround

Exit fullscreen mode