I'm really excited that I can finally hover over a word in a Bible and get it highlighted in other versions of the Bible. Two items of feedback:
1. It is currently very, very slow. I have a fast computer (i7-4600u with SSD and 8GB of RAM) and it's taking about 3-5 seconds to highlight on hover. I was testing with the ESV with Multiple Resources activated, with NA28 and LHB. One thing I noticed is that it is getting backlogged with other words. So, if I move the mouse to hover over a word, it will first highlight all the words over which my mouse moved, but without stopping to rest on them. This is something that is not necessary - if the mouse doesn't stop to rest, there is no need to highlight, at least when it is as slow as it currently is.
2. It has been relatively common that the incorrect word is highlighted, or at least sort of.... For example, if you hover over "Man" in Luke 21:36, only the word του is highlighted in the Greek. Or, if you hover over "day" in Luke 21:37, only the word τας is highlighted.