It suffers from the same defect all html spreadsheets do (even google docs): if you zoom/resize the screen, row/col alignment breaks.

Unbelievable how in this decade it is still almost impossible to make a table work like a spreadsheet in html. How hard would it be to just enforce a couple of css properties in tables to make them behave? Like:

    tbody {overflow:auto;}

That would be a great start. Then:

    thead,tfoot{position:fixed;}
    tbody td:first-child{position:fixed}

That'd be all, add a contentEditable attribute and that's it. Everything else is just a matter of coding tricks to format cells and formulas.

Hello Whatwg, you listening? I know w3c is been deaf for long, that's why I am asking you. Hixie alive? Earth is calling.

* Here is a basic implementation using box model and display:-webkit-box; (chrome/safari in OSX only) http://georgenava.appspot.com/demo/spreadsheetcalc.html