No idea what it means, but saving it in case it comes in useful...
View As Web Page each panel has 3(?) tabs.
the panel's own tab is highlighted. each other tab refers only to the anchor on the page, of the appropriate tab/panel pair.
non scripted browsers will be able to navigate the page in a linear fashion.
adding a javascript function (attached to the object using getElementById) that hides each tab, and overlays them, using the standard style switch would give the appearance of swapping the tabs.
javascript: Programming language of the web, mostly how I make my living.
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Paulʼs weblog - I live in A sleepy town, Kent. Married + dad to 2, I'm a full-stack web engineer, + I do mostly js / nodejs, some ruby, python, php ect ect. I like pubbing, parkrun, eating, home-automation and other diy jiggery-pokery, history, genealogy, TV, squirrels, pirates ☠️, lego, + time travel.