
The Science Behind Optimal Line Length
Why 45-75 characters per line isn't just a rule of thumb — it's backed by decades of reading research.
Alex Rivera
Nov 15, 2025
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Typography is the art and technique of arranging type to make written language legible, readable, and appealing when displayed. A well-crafted type scale brings harmony and hierarchy to your designs.
/* TypeLab Generated CSS */
:root {
--font-size-base: 16px;
--line-height: 1.5;
--scale-ratio: 1.25;
--font-size-h1: 39px;
--font-size-h2: 31px;
--font-size-h3: 25px;
--font-size-body: 16px;
}Start free, upgrade when you need more power.
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Sarah Chen
Senior Designer at DesignHub
Thoughts on design, development, and digital experiences.

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