SIA-R44Orientation of the page is not restricted using CSS transform property
This rule tests conformance of the following accessibility requirements:
This rule checks that page content is not restricted to either
portrait orientation using the
This rule applies to every element in the HTML namespace that is visible and has a
transform property that is applied conditionally on the
orientation media feature with a value of
portrait, where the
transform property has any of the following transform functions:
- The target element is neither rotated clockwise nor counter clockwise around the Z-axis at an angle corresponding to 90 degrees relative from the position of the element in
landscapeorientation to the position of the element in
portraitorientation, and vice versa.
This rule does not consider and may produce incorrect results for:
- Elements for which a particular display orientation is essential.
- The existence of any control on the page that can change the orientation on demand.
This rule has no known accessibility support concerns.
This document includes material copied from or derived from https://act-rules.github.io/rules/b33eff/. Copyright © 2021 W3C® (MIT, ERCIM, Keio, Beihang).