An introduction to modular typography for websites and a tool, Typografier, to help simplify use.

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Modular type


  • More flexible layouts—less work
  • Reduce code duplication
  • Be more declarative & clear
  • Cohesive vertical rhythm
  • Abstracts type size from HTML semantics
  • Easier working on teams


  1. Pick a scale (musical scales are popular)
  2. Use math to calculate all the things
  3. Use only those set classes

All the maths!

font-size: base-font-size × type-scale ^ distance-from-base
line-height: ceil(font-size ÷ base-line-height) × (base-line-height ÷ font-size)

(With a little finessing based on our design eyes.)


I don’t want to have to write this code every time!

  • Generate a whole type system
  • Media query size configuration
  • Type scale selection
  • And lots more features…

Typografier »

Classes for size

  • Different sizes are defined by different classes
  • Each class has an optimized line-height
  • Remove the top margin from everything and standardize on bottom margin
  • 10 different font-sizes—you shouldn’t need more
  • Based on the metric system:
    .micro, .milli, .kilo, etc.
<link href="css/type.css" rel="stylesheet">

<h1 class="micro">Heading Level 1</h1>
<h2 class="giga">Heading Level 2</h2>
<p class="yotta">Text block</p>
<p class="milli">Another text block</p>

Classes for spacing

  • Different classes to add amounts of spacing
  • Spacing is always divisible by line-height to fit the vertical rhythm
<h1 class="push-0">Heading Level 1</h1>
<h2 class="push-2">Heading Level 2</h2>
<h3 class="island">Heading Level 3</h3>

Type-specific utility classes

  • Different classes to change styles & weights
  • Different classes to change alignments
  • Classes to control line-length
<h1 class="italic not-bold">Heading Level 1</h1>
<h2 class="text-right">Heading Level 2</h2>
<p class="max-length">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Aenean commodo ligula eget dolor. Aenean massa. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p>

An introduction to modular typography for websites and a tool, Typografier, to help simplify use.