Leading, which many call line height, is the space between lines of text. Web designers will often call it line height as line-height is the CSS property to handle leading. Leading is probably one of the most important Graphic Design principles to improve the readability of your content. No reader enjoys content that is sandwiched together. Creating great content is awesome, but quite often, people don’t want to read everything that you write. We use our eyes as an advanced technology to scan for the important information. Humans love white space, which is essentially what leading provides between lines of text.

While there is well more than 3 rules about leading, these are the 3 most important rules that I can give to you to improve your website with line height in mind.