"The restaurant is expensive but good."
Translation:اَلْمَطْعَم غالي لٰكِنّ طَيِّب.
I type المطعم but my lam-mim combination is automatically converted to a different form, which I know is correct, but it tells me I have a spelling mistake. I can't reproduce it here, I think it's an open-type thing — the input box on the site is using Geeza Pro whereas this one is in Arial.
On a side-note, I've had success increasing the text size using a custom CSS file, but I haven't managed to change the fonts yet. Not sure why.