rtl page, ltr div, p
Test passes if:
A. The visual order of words is Arabic (مكتب), English (W3C), Hebrew (הישראלי)
B. The text is left-aligned.
مكتب W3C הישראלי
مكتب W3C הישראלי

Assertion: When dir="rtl" is added to a div in a rtl context, for paragraphs in the div (a) directional runs are ordered left-to-right, (b) the paragraphs are left-aligned on the page.
= means you should check that the test and reference graphic look the same, except for font differences and cursive joining behavior.