# Description

This test validates that the page properly becomes hidden and visible due to switching tabs.

# Manual Test Steps:

1. Ensure this page is the foreground and click the "Start Test"
2. Switch to another tab
3. Return to the current tab containing this test page

Note: This test will automatically timeout and fail if not completed within 60 seconds.
IFrame with default style:

IFrame with "display:none" style: