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Jerkmate
https://amp.dev/documentation/components/websites/amp-dynamic-css-classes
Documentation: amp-dynamic-css-classes - amp.dev
amp dynamic cssclasses devdocumentation
https://amp.dev/documentation/examples/components/amp-dynamic-css-classes/
Example: amp-dynamic-css-classes - amp.dev
AMP's dynamic CSS classes provided by the amp-dynamic-css-class enable boolean logic for a handful of conditions
amp dynamic cssclasses devexample
https://amp.dev/documentation/components/amp-dynamic-css-classes
Documentation: amp-dynamic-css-classes - amp.dev
amp dynamic cssclasses devdocumentation