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position-visibility
.target { position-visibility: no-overflow; }
position-try-fallbacks
.target { position-try-fallbacks: flip-inline, inset-area(bottom left); }
position-try-order
.element { position-try-order: most-width; }
:valid
form:valid { outline: 3px dashed green; }
:invalid
form:invalid { outline: 3px dashed red; }
inset-area
.target { inset-area: bottom end; }
anchor-name
.anchor { anchor-name: --my-anchor; }
::details-content
details::details-content { font-size: 1.5rem; }
::view-transition-image-pair
::view-transition-image-pair(root) { animation-duration: 1s; }
::view-transition-group
::view-transition-group(transition-name) { animation-duration: 1.25s; }
::view-transition
::view-transition { position: fixed; }
:popover-open
:popover-open { border: 0; }
view-timeline-name
container
.element { container: cards-grid / inline-size; }
container-name
.element { container-name: cards-grid; }
position-anchor
.target { position-anchor: --my-anchor; }