Test passes if the two boxes below look exactly the same.
Key to entities used below:
- LRM, the invisible left-to-right mark (strongly LTR).
- RLM, the invisible right-to-left mark (strongly RTL).
This test makes sure that the direction is set correctly for a textarea whose value is set
dynamically by script.
We use text-align:left because neither the dir="auto" nor the unicode-bidi:plaintext
specification states whether text-align:start and text-align:end should obey the paragraph
direction or the direction property in a unicode-bidi:plaintext element.