Picto thématique

Rule n° 187 - Capitalization for decorative purposes is done using styles.

It is perfectly possible to write web text in lower case and display it in uppercase with CSS styles. In this way, the user remains free to do whatever he wants with it. You should also be aware that text in upper case is read about 30% slower (source: Jakob Nielsen).

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  • Enable cutting-and-pasting of content, regardless of any all-caps formatting.
  • Simplify the adaptation of formatting to users with trouble reading texts in all caps.


Enter the HTML content in compliance with the typographic usage for upper case letters (start of sentence, proper names, etc.)

Use the CSS text-transform property with the uppercase value to manage decorative capitals.


For all content entirely in capital letters:

  • Disable style support for the website in the browser;
  • Identify the texts that appear in upper case when styles are disabled;
  • Check that the use of capital letters respects the typographic conventions of the language used. For example: acronyms or names of authors in a bibliography can be in capital letters.

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