Truncated view mode

The first few letters of every line in view mode is truncated.
Edit mode is complete though.
What is wriong?
version 0.15.9

There is a template for bug reports that you haven’t followed, so I’m moving this to Help. To help, more info is needed.

Post your “Show debug info”. And a screenshot. Try it without custom CSS or plugins. If that fixes it, try to update your theme and plugins.