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// FLEX - ALIGN-ITEMS
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ORIGINAL DEFAULT VALUE
alignItems: 'stretch',

EARLIEST NOTES
"stretch" option allows addition of content elements to be block-level & fill space (as long as those content
elements default "align-self" value is "auto") - user can then adjust the content's "align-self" option to override

6/7/19
update on current state of product = "align-items" & "align-content" have been merged into 1 input control titled "crossAxis"