diff --git a/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.html b/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.html
index 6a1569b4051725..16ab6c33f6626e 100644
--- a/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.html
+++ b/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.html
@@ -1,5 +1,5 @@
 <!-- wp:media-text {"mediaType":"image","imageFill":true} -->
-<div class="wp-block-media-text alignwide is-image-fill-v8 is-stacked-on-mobile">
+<div class="wp-block-media-text is-image-fill-v8 is-stacked-on-mobile">
 	<figure class="wp-block-media-text__media">
 		<img src="data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k="
 			alt="My alt text" style="object-position:50% 50%" /></figure>
diff --git a/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.json b/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.json
index c7642287c13a88..681f7c2b44e4e7 100644
--- a/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.json
+++ b/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.json
@@ -11,8 +11,7 @@
 			"mediaWidth": 50,
 			"isStackedOnMobile": true,
 			"imageFill": true,
-			"useFeaturedImage": false,
-			"className": "alignwide"
+			"useFeaturedImage": false
 		},
 		"innerBlocks": [
 			{
diff --git a/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.parsed.json b/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.parsed.json
index 4457542a3deedc..0c178bc87ac5a1 100644
--- a/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.parsed.json
+++ b/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.parsed.json
@@ -19,9 +19,9 @@
 				]
 			}
 		],
-		"innerHTML": "\n<div class=\"wp-block-media-text alignwide is-image-fill-v8 is-stacked-on-mobile\">\n\t<figure class=\"wp-block-media-text__media\">\n\t\t<img src=\"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=\"\n\t\t\talt=\"My alt text\" style=\"object-position:50% 50%\" /></figure>\n\t<div class=\"wp-block-media-text__content\">\n\t\t\n\t</div>\n</div>\n",
+		"innerHTML": "\n<div class=\"wp-block-media-text is-image-fill-v8 is-stacked-on-mobile\">\n\t<figure class=\"wp-block-media-text__media\">\n\t\t<img src=\"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=\"\n\t\t\talt=\"My alt text\" style=\"object-position:50% 50%\" /></figure>\n\t<div class=\"wp-block-media-text__content\">\n\t\t\n\t</div>\n</div>\n",
 		"innerContent": [
-			"\n<div class=\"wp-block-media-text alignwide is-image-fill-v8 is-stacked-on-mobile\">\n\t<figure class=\"wp-block-media-text__media\">\n\t\t<img src=\"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=\"\n\t\t\talt=\"My alt text\" style=\"object-position:50% 50%\" /></figure>\n\t<div class=\"wp-block-media-text__content\">\n\t\t",
+			"\n<div class=\"wp-block-media-text is-image-fill-v8 is-stacked-on-mobile\">\n\t<figure class=\"wp-block-media-text__media\">\n\t\t<img src=\"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=\"\n\t\t\talt=\"My alt text\" style=\"object-position:50% 50%\" /></figure>\n\t<div class=\"wp-block-media-text__content\">\n\t\t",
 			null,
 			"\n\t</div>\n</div>\n"
 		]
diff --git a/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.serialized.html b/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.serialized.html
index 4498c6672719b3..04873b7ba4a4b5 100644
--- a/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.serialized.html
+++ b/test/integration/fixtures/blocks/core__media-text__image-fill-no-focal-point-selected.serialized.html
@@ -1,5 +1,5 @@
-<!-- wp:media-text {"mediaType":"image","imageFill":true,"className":"alignwide"} -->
-<div class="wp-block-media-text is-stacked-on-mobile is-image-fill-v8 alignwide"><figure class="wp-block-media-text__media"><img src="data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=" alt="My alt text" style="object-position:50% 50%"/></figure><div class="wp-block-media-text__content"><!-- wp:paragraph {"placeholder":"Content…","fontSize":"large"} -->
+<!-- wp:media-text {"mediaType":"image","imageFill":true} -->
+<div class="wp-block-media-text is-stacked-on-mobile is-image-fill-v8"><figure class="wp-block-media-text__media"><img src="data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=" alt="My alt text" style="object-position:50% 50%"/></figure><div class="wp-block-media-text__content"><!-- wp:paragraph {"placeholder":"Content…","fontSize":"large"} -->
 <p class="has-large-font-size">My Content</p>
 <!-- /wp:paragraph --></div></div>
 <!-- /wp:media-text -->
diff --git a/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.html b/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.html
index 5b2de92571aca9..ce9d4f6b287b0b 100644
--- a/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.html
+++ b/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.html
@@ -1,5 +1,5 @@
 <!-- wp:media-text {"mediaType":"image","imageFill":true,"focalPoint":{"x":0.84,"y":0.84}} -->
-<div class="wp-block-media-text alignwide is-image-fill-v8 is-stacked-on-mobile">
+<div class="wp-block-media-text is-image-fill-v8 is-stacked-on-mobile">
 	<figure class="wp-block-media-text__media">
 		<img src="data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k="
 			alt="My alt text" style="object-position:84% 84%" /></figure>
diff --git a/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.json b/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.json
index c072f191127f3e..cc4f0a3b7ee993 100644
--- a/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.json
+++ b/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.json
@@ -15,8 +15,7 @@
 				"x": 0.84,
 				"y": 0.84
 			},
-			"useFeaturedImage": false,
-			"className": "alignwide"
+			"useFeaturedImage": false
 		},
 		"innerBlocks": [
 			{
diff --git a/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.parsed.json b/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.parsed.json
index bf8f0062eb8b53..892ccabfa1a2e3 100644
--- a/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.parsed.json
+++ b/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.parsed.json
@@ -23,9 +23,9 @@
 				]
 			}
 		],
-		"innerHTML": "\n<div class=\"wp-block-media-text alignwide is-image-fill-v8 is-stacked-on-mobile\">\n\t<figure class=\"wp-block-media-text__media\">\n\t\t<img src=\"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=\"\n\t\t\talt=\"My alt text\" style=\"object-position:84% 84%\" /></figure>\n\t<div class=\"wp-block-media-text__content\">\n\t\t\n\t</div>\n</div>\n",
+		"innerHTML": "\n<div class=\"wp-block-media-text is-image-fill-v8 is-stacked-on-mobile\">\n\t<figure class=\"wp-block-media-text__media\">\n\t\t<img src=\"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=\"\n\t\t\talt=\"My alt text\" style=\"object-position:84% 84%\" /></figure>\n\t<div class=\"wp-block-media-text__content\">\n\t\t\n\t</div>\n</div>\n",
 		"innerContent": [
-			"\n<div class=\"wp-block-media-text alignwide is-image-fill-v8 is-stacked-on-mobile\">\n\t<figure class=\"wp-block-media-text__media\">\n\t\t<img src=\"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=\"\n\t\t\talt=\"My alt text\" style=\"object-position:84% 84%\" /></figure>\n\t<div class=\"wp-block-media-text__content\">\n\t\t",
+			"\n<div class=\"wp-block-media-text is-image-fill-v8 is-stacked-on-mobile\">\n\t<figure class=\"wp-block-media-text__media\">\n\t\t<img src=\"data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=\"\n\t\t\talt=\"My alt text\" style=\"object-position:84% 84%\" /></figure>\n\t<div class=\"wp-block-media-text__content\">\n\t\t",
 			null,
 			"\n\t</div>\n</div>\n"
 		]
diff --git a/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.serialized.html b/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.serialized.html
index a0e730cb4b1184..c1a7c672388586 100644
--- a/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.serialized.html
+++ b/test/integration/fixtures/blocks/core__media-text__image-fill-with-focal-point-selected.serialized.html
@@ -1,5 +1,5 @@
-<!-- wp:media-text {"mediaType":"image","imageFill":true,"focalPoint":{"x":0.84,"y":0.84},"className":"alignwide"} -->
-<div class="wp-block-media-text is-stacked-on-mobile is-image-fill-v8 alignwide"><figure class="wp-block-media-text__media"><img src="data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=" alt="My alt text" style="object-position:84% 84%"/></figure><div class="wp-block-media-text__content"><!-- wp:paragraph {"placeholder":"Content…","fontSize":"large"} -->
+<!-- wp:media-text {"mediaType":"image","imageFill":true,"focalPoint":{"x":0.84,"y":0.84}} -->
+<div class="wp-block-media-text is-stacked-on-mobile is-image-fill-v8"><figure class="wp-block-media-text__media"><img src="data:image/jpeg;base64,/9j/2wBDAAMCAgICAgMCAgIDAwMDBAYEBAQEBAgGBgUGCQgKCgkICQkKDA8MCgsOCwkJDRENDg8QEBEQCgwSExIQEw8QEBD/yQALCAABAAEBAREA/8wABgAQEAX/2gAIAQEAAD8A0s8g/9k=" alt="My alt text" style="object-position:84% 84%"/></figure><div class="wp-block-media-text__content"><!-- wp:paragraph {"placeholder":"Content…","fontSize":"large"} -->
 <p class="has-large-font-size">My Content</p>
 <!-- /wp:paragraph --></div></div>
 <!-- /wp:media-text -->