echo CSSJanus::transform( 'border-radius: 0px 0px 5px 5px' );
border-radius: 0px 5px 5px 0px
https://developer.mozilla.org/en-US/docs/Web/CSS/border-radius says:
border-radius: top-left top-right bottom-right bottom-left
So bottom-left suddenly changes to top-right, which is incorrect. Noticed this in ULS.
Version: 1.17.x
Severity: normal