Weird non-printable characters in text

I am create a new HTML file on my iPad.  When I get the file done and attempt to preview it, the style sheet is not reflected in the output.  When I open it with Friebug lite, there are a lot of bizarre characters in the outputScreenshot

This is annoying - I don’t know how the weird characters were inserted or where to look to fix the problem so they are no longer present.