CSS Text Box

CSS `text-box` (and its longhands `text-box-trim` & `text-box-edge`) provide the ability to trim extra space over/under text glyphs at the start/end of a block to match specific font-provided metrics. This allows for more precise alignment and positioning of text.

css property: align-items: supported in flex layout: `start` value supported in flex layout

css property: text-align-last: start

css property: text-align: start