update js, css to indicate when pdf is selected

sul-dlss / sul-embed

An oEmbed Service for Stanford University Libraries

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Closed dnoneill closed 4 weeks ago

dnoneill commented 1 month ago

closes #2161

Based on @alundgard comments updated to be

peetucket commented 1 month ago

Nice. Not really my call, but maybe bolded too would make it even more obvious?

alundgard commented 1 month ago

Since there isn't a non-color visual indicator of active state, I believe the active state color will need a 3:1 contrast ratio with both the background (white) and the inactive state color (black). https://www.w3.org/WAI/WCAG21/Understanding/non-text-contrast#user-interface-components

alundgard commented 4 weeks ago

Approved pending PO approval.