From what I can tell from a quick research, ODB it seems to be a pretty old and more or less obsolete protocol. It looks like it wouldn't work with a sandboxed app like Textastic because it is based on Apple Events which would require a temporary exception from Apple.

It may not be possible to implement for a Mac App Store app that requires sandboxing.

Then the CSS probably isn't referenced properly. Make sure to use relative file paths.

Thanks, I can reproduce it now. It only happens after the italic line that starts with "> /etc/apt…". I'll try to fix it.

Which syntax definition do you use? I can't reproduce it with either the Markdown or the MultiMarkdown syntax definition.

Also, this syntax is a feature of GitHub flavored Markdown only: https://help.github.com/articles/github-flavored-markdown/

If you are editing an HTML file, you can drag the file icon from Textastic's window title bar onto the Safari Dock icon to view it. If you are using Markdown, I recommend the app Marked 2 for preview.

The iPhone version and the iPad version are two separate apps, so it would be an additional purchase if you want both.

Textastic currently uses the default OS X find/replace interface that is provided by the system. You can find the same UI in TextEdit for example. I can't change the font size.

I plan to implement my own find/replace UI in order to add regular expression search. I'll keep the font size in mind when I do that.

The current version of Textastic requires iOS 7, but you can still download the latest compatible version from the App Store.

Please have a look at this Apple support article: http://support.apple.com/kb/ht5919