… Now, each font is different, even at the same size, but we’re talking: 1. If this is a cover letter, an error might even cost you a job offer. div.a { font-size: 15px;} div.b { font-size: large;} div.c { font-size: 150%;} Try a variety of font types and sizes to see which one allows you to fit your letter on one page, while still leaving some white space. Using a simple font will ensure that your message is clear. As a general rule, margins should be no wider than 1” and no narrower than .7”. The default text size in browsers is 16px. Times Roman or Courier. Keep your letter to one page or less, if possible. The size of your font is declared in your CSS file. Regardless of the font and font size you select, there should be white space at the top, bottom, and sides of your letter. We are using IDAutomation Code 39 barcode fonts. Here’s how you can end that frustration and set your favorite default font size for once and for all! Try some different fonts and font sizes until the letter fits onto one page. The font size I use for the space depends on the font size for the text—so if the text is 14 point, I might use 7 or 8 points for the thin space. What is the Best Font Size for Cover Letters? Don’t get fancy. That’s the unit of measurement in websites. The FontSize property can be set to a double value directly, or by a NamedSize enumeration value: