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Test Info:

<!DOCTYPE html>
<html>
<style>
textarea {
width: 100px;
height: 150px;
margin: 10px;
padding: 0;
}
</style>
<textarea style="writing-mode:vertical-lr"></textarea>
<textarea style="writing-mode:vertical-rl"></textarea>
<textarea style="writing-mode:sideways-lr"></textarea>
<textarea style="writing-mode:sideways-rl"></textarea>