=== Problem to solve
In the current Timeline, to scrutinize the contents of every edit, users must open the diffs in a new tab. This makes using the Timeline a multiple-tab tool, which may decrease productivity.
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=== Acceptance criteria
//WIP//
* For each 'edit box' on the Timeline, show a link to 'expand diff'
* W* The 'expand diff' link should change to 'collapse diff' and when clicked, a two-column wikitext diff should display in the
* The diff should use the same styling as it does on standard desktop Wikimedia diff pages ([[https://en.wikipedia.org/w/index.php?title=Typhoon_%28American_band%29&type=revision&diff=805661470&oldid=796554201|example]])it should collapse the diff and return to 'expand diff'.
* TBD: Fixed-height scrolling box?When clicked, a two-column wikitext diff should display in the timeline
* The diff should use the same styling as it does on standard desktop Wikimedia diff pages ([[https://en.wikipedia.org/w/index.php?title=Typhoon_%28American_band%29&type=revision&diff=805661470&oldid=796554201|example]])
* Inside the diff container:
** a link to open the revisionsdiff in a new tab
** a link to full page history?
** ability to open link to the diff in a new tab?current revision
** a timestamp for each revision, linked to the revision
** the username forwho submitted each revision
* The 'expand diff' linkdiff container should change to 'collapse diff' and when clicked, ithave a maximum height of 500 (?) pixels and should collapse the diff and return to 'expand diff'.scroll within if needed
* Multiple diffs should be able to be opened on the same page.