how to change font

If you look in your stylesheet (style.css) you’ll see
p {padding: 10px 0 10px 4px; margin:0; font-size:15px;}

Change the 15px to something smaller. That’ll change the paragraph text at least.

For the headings, look for .posttitle … font-size:20px;

Make that smaller too and that’ll sort out your post titles.

thanks for the tip, as this helped me to enlarge font on one of my blogs!!

Ditto!