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Subgrid for CSS Grid launches in Firefox 71

Subgrid for CSS Grid Layout has arrived in Firefox and it looks great. Here’s how I wrapped my head around the new concepts.

While MDN has some nice examples, I generally find I need a little extra time, trial and error and note-making in order to fully grasp CSS Grid concepts.

For example, I always need to remind myself that parts of the syntax – such as grid-template-columns selectors – refer to grid lines rather than columns.

So I created a Subgrid example pen with guideline notes for future reference. Note: make sure to open the pen in Firefox rather than any other browser, because at the time of writing only Firefox supports Subgrid!

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