diff --git a/projects/plugins/jetpack/changelog/try-remove-default-button-style b/projects/plugins/jetpack/changelog/try-remove-default-button-style
new file mode 100644
index 0000000000000..d0c62277f7f69
--- /dev/null
+++ b/projects/plugins/jetpack/changelog/try-remove-default-button-style
@@ -0,0 +1,4 @@
+Significance: minor
+Type: bugfix
+
+Button block: remove default CSS that is overriding core + theme styles.
diff --git a/projects/plugins/jetpack/extensions/blocks/button/view.scss b/projects/plugins/jetpack/extensions/blocks/button/view.scss
index 6b3dea19115cd..bfad05f2731ea 100644
--- a/projects/plugins/jetpack/extensions/blocks/button/view.scss
+++ b/projects/plugins/jetpack/extensions/blocks/button/view.scss
@@ -1,7 +1,3 @@
 .amp-wp-article .wp-block-jetpack-button {
 	color: #ffffff;
 }
-
-.wp-block-jetpack-button button {
-	border: inherit;
-}
diff --git a/projects/plugins/jetpack/modules/contact-form/css/grunion.css b/projects/plugins/jetpack/modules/contact-form/css/grunion.css
index 405898d6bbcfb..c2f5544700fc4 100644
--- a/projects/plugins/jetpack/modules/contact-form/css/grunion.css
+++ b/projects/plugins/jetpack/modules/contact-form/css/grunion.css
@@ -135,12 +135,6 @@
 	flex: 0 0 100%;
 }
 
-.wp-block-jetpack-button button {
-	padding: 20px 30px;
-	border: inherit;
-	font: inherit;
-}
-
 .wp-block-jetpack-button.alignright button {
 	float: right;
 }