Seems to lack a license. I'm assuming the intention was to make this open source?
Anyway, great work! Many similarities in the UI to my http://hallojs.org/ editor. I'd love to integrate this with Create.js if you can clarify the license question...
I was just going to comment on the similarity as well. I think these built-in HTML5 editors are great, especially when they include persistence. For the node.js devs, I made a wrapper for Create.js http://github.com/primaryobjects/contentblocks
Very nice. Agreed with another commenter that the default animations could be snappier.
I have a complaint: like many HTML WYSIWYG tools, modes are not directly reversible. For example, select a word then click the "numbered list" button. Then click it again to switch back to a normal paragraph. Oddly, a new paragraph has been added above your selection.
So many HTML WYSIWYG tools have this kind of quirk, leading to very polluted output HTML (with empty tags, redundant tags, and so on).
Could use a bit of a margin on the bottom of the menu. It tends to sit over the text, either partially or completely which probably isn't really the expected behavior for an edit menu.
Pretty cool! Reminds me of the UI on medium.com (selecting text on view mode allows sharing and commenting, and on edit mode pops up a floating format toolbar).
Looks interesting! A few thoughts to make a bit nicer to use: it could be much smaller, and flow slightly higher above the text. Also the animations between different modes (for text align, etc) should be faster so I don't feel like I'm waiting on it.