There appears to be a bug with blog posts on mobile devives if you end the blog post with a URL/Hyperlink.
I noticed on a client’s blog when they decided to end a particular blog post with a URL link, the text on the blog post altered on mobile devices and was stretched wider than the screen width, thus making it illegible to read.
If you take a look below at LINK1 and view this on mobile you will see what I mean.
Below it then on LINK2 is an identical post, however I have ended it with regular text as opposed to a URL and it formats okay.
Here is my site Read-Only: