Adjust based on #59457

packages/block-library/src/audio/theme.scss

@@ -2,6 +2,6 @@
 	@include caption-style-theme();
 }
 
-:where(.wp-block-audio) {
+:root :where(.wp-block-audio) {
 	margin: 0 0 1em 0;
 }

packages/block-library/src/cover/style.scss

@@ -1,5 +1,5 @@
 // Lowest specificity styles are used to ensure that the default styles for the cover block can be overridden by global styles.
-:where(.wp-block-cover-image, .wp-block-cover) {
+:root :where(.wp-block-cover-image, .wp-block-cover) {
 	min-height: 430px;
 	padding: 1em;
 }

packages/block-library/src/embed/theme.scss

@@ -2,6 +2,6 @@
 	@include caption-style-theme();
 }
 
-:where(.wp-block-embed) {
+:root :where(.wp-block-embed) {
 	margin: 0 0 1em 0;
 }

packages/block-library/src/image/theme.scss

@@ -2,6 +2,6 @@
 	@include caption-style-theme();
 }
 
-:where(.wp-block-image) {
+:root :where(.wp-block-image) {
 	margin: 0 0 1em 0;
 }

packages/block-library/src/pullquote/theme.scss

@@ -1,4 +1,4 @@
-:where(.wp-block-pullquote) {
+:root :where(.wp-block-pullquote) {
 	border-top: 4px solid currentColor;
 	border-bottom: 4px solid currentColor;
 	margin-bottom: 1.75em;

packages/block-library/src/quote/theme.scss

@@ -1,4 +1,4 @@
-:where(.wp-block-quote) {
+:root :where(.wp-block-quote) {
 	border-left: 0.25em solid currentColor;
 	margin: 0 0 1.75em 0;
 	padding-left: 1em;

packages/block-library/src/table/theme.scss

@@ -9,6 +9,6 @@
 	}
 }
 
-:where(.wp-block-table) {
+:root :where(.wp-block-table) {
 	margin: 0 0 1em 0;
 }

packages/block-library/src/template-part/theme.scss

@@ -1,5 +1,5 @@
 // Same as the group block styles.
-:where(.wp-block-template-part) {
+:root :where(.wp-block-template-part) {
 	&.has-background {
 		// Matches paragraph Block padding
 		padding: $block-bg-padding--v $block-bg-padding--h;

packages/block-library/src/video/theme.scss

@@ -2,6 +2,6 @@
 	@include caption-style-theme();
 }
 
-:where(.wp-block-video) {
+:root :where(.wp-block-video) {
 	margin: 0 0 1em 0;
 }