Best Practice 1.14 – Allow content to display in multiple orientation (Advanced level)

Unless a specific display orientation is essential, the content should be able to be viewed or operated in either portrait or landscape orientations.

Before Rectification	After Rectification
In this example, users are unable to change the display orientation.	By not restricting the display orientation, users can view the content in the orientation that suits them best.

W3C WCAG Reference: 1.3.4 Orientation