alancnet/slides @ 6fba833de853c18c19082a866ba902f4a028e4ed

Hakim El Hattab 271bae6b56 allow hiding of vertical slide stacks		13 éve
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reveal.js	271bae6b56 allow hiding of vertical slide stacks	13 éve
reveal.min.js	271bae6b56 allow hiding of vertical slide stacks	13 éve