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Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.

Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.

Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.

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Lorem ipsum dolor sit amet

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Execute the command ls -la in a shell.

function foo() { return 42; }

Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam ls -la erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet. Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore function foo() { return 42; } et dolore magna aliquyam erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea rebum. Stet clita kasd gubergren, no sea takimata sanctus est Lorem ipsum dolor sit amet.

function foo() {
					return 42;
					}

				just some
				preformatted
				stuff
			

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Text

Disabled button Disabled button

required

required please select 42

required

pattern

checkbox

checkbox

• Lorem ipsum
• Dolor sit amet
• Consetetur sadipscing
• indeterminate checkbox

Disabled checkbox

radio

radio yes maybe no

Disabled radio

42 42 99 42

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Lorem 42 sit amet

file

Disk space:

800GB

Temperature:

19°C

Video

Audio

A tooltip is its own element with role="tooltip", and the trigger points at it with aria-describedby — that way the text becomes the trigger's description instead of replacing its name.

Save Saves without closing the dialog

Near the edge Flips instead of running off the viewport

The optional styles/tooltip-description.css does the same with no element at all — one aria-description on the trigger, rendered by a pseudo element. It flips the same way:

Attribute only

Near the edge

Both flip against the viewport, not against this column. The demo body stops at --content-width, so on a wide window there is still room to the right of these buttons and neither of them turns around — narrow the window to see it happen.

Toggle popover Open dialog

Foreground

Background

Border / Input / Button

Brand

Success / Warning / Danger / Info

Message: Success / Warning / Danger / Info

Every color is a light-dark() pair, and those tokens stay unresolved until the element that finally reads them. That is why color-scheme keeps working further down the tree, so data-color-scheme can sit on any element instead of only on <html> — as the switch at the top of this page does.

Should only be used to apply state (not context), be binary (not different options), (de-)activate (not perform action) and immediately persist without using additional buttons.

Toggle switch

Toggle switch

Toggle switch

Disabled toggle switch

Filled with the brand color. The label turns black or white by itself, whichever the brand color can carry, so a project only sets the one token.

Controls welded into one, with .field-group on a wrapper.

Go

States a project marks up with ARIA rather than with a class of its own.

aria-pressed

A toggle button that stays down while it is on.

On Off

aria-disabled

Dimmed like :disabled, but still reachable by keyboard, so the reason it cannot be used can still be announced. Blocking the action itself stays the project's job.

Send Send, natively disabled

aria-busy

A progress cursor over anything that is still loading.

Hover this paragraph, it claims to be busy.

inert

A subtree taken out of the page: not clickable, not focusable, skipped by find-in-page. Tab through the buttons above and this one never receives focus.

.sr-only

Off the screen, still announced. This sentence exists only for a screen reader. A focusable one comes back the moment it is tabbed to, so try this hidden link with the keyboard.

.ellipsis

A single line that was given far less room than it would need, so it ends in an ellipsis.

.skip-link

The first element in the body, pointing at the main content. It waits off-screen until it takes focus — press Tab right after the page loads and it slides in at the top left of this page.