Love this.
The way the Greek is displayed isn't very helpful, though. Specifically, any vowel with a grave accent displays the accent as a separate letter, which makes it very distracting to read. I don't think it's a problem with the encoding, as I can copy the inline text and it displays just fine - though with some weird spaces before commas or periods:
ΕΝ ΑΡΧΗ ἦν ὁ λόγος , καὶ ὁ λόγος ἦν πρὸς τὸν θεόν , καὶ θεὸς ἦν ὁ λόγος .
I recognise that quote. :) But am I right in noticing a lack of breathings? Unless the tilde indicates it. I'm not sure of the difference between the acutes and graves here. I am used to seeing only one kind of accent on ancient Greek vowels.