This pages lists reusable content blocks.


Allows to have a couple of cards next to each other to call out specific contents or can be used for a call to action. CSS class: .card-grid (L 751 - 824 in CustomCSS).

  • CSS Reference

    An exhaustive reference for seasoned Web developers describing every property and concept of CSS.

  • CSS Tutorial

    A step-by-step introduction to help complete beginners get started. It presents all the needed fundamentals.

  • CSS3 Demos

    A collection of demos showing the latest CSS technologies in action: a boost for the creativity.

Two columns

Two columns seperated with a thick grey border. Often used on landing pages. CSS class: .topicpage-table (L 830 - 837 & 82-93 in CustomCSS).

Column 1
Column 2


Equal column heights

Used on the Firefox OS landing page to wrap columns that should all be the same height. CSS class .equalColumnHeights (L 25 - 38 in CustomCSS).

Some text
And a new line
Some more text




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