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An example of auto-placement using dense packing to create a grid of boxes.

The auto-placement rules place items in the following order:

  1. First place any none auto-placed items. Those that have a definite position on the grid. In this case that is the items that are white, and black.
  2. Next place any items locked to a given row (if placing by row) or column (if placing by column).
  3. Now place all other items.

If the packing mode is dense, steps 2 and 3 will work backwards to find empty spaces where the item fits.

Use Firefox Nightly/Developer Edition or Chrome Canary and you can drag the window to see the grid reflow

This Pen is a fork of rachelandrew's Pen Websafe colors meet CSS Grid (auto-placement demo).


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