A good while back, some font sizing changes were made in the forums that made the text darned difficult to read due to small size for me (running OS X on a 1792 x 1348 22" monitor). Granted, I do ...

The smallest font sized used for printing is 6pt or 0.6mm+. Factors like style, line thickness, print size and more determine readability of the text.

The smallest font sized used for printing is 6pt or 0.6mm+. Factors like style, line thickness, print size and more determine readability of the text.

Fortunately, Tumblr enables you to change the font size for your blog's text by giving you direct access to the raw CSS or Cascading Style Sheet code of your theme. Log in to your Tumblr blog.