diff --git a/packages/edit-post/src/components/header/header-toolbar/style.scss b/packages/edit-post/src/components/header/header-toolbar/style.scss
index ba3e478348f865..bd4bc0392e3c45 100644
--- a/packages/edit-post/src/components/header/header-toolbar/style.scss
+++ b/packages/edit-post/src/components/header/header-toolbar/style.scss
@@ -80,6 +80,11 @@
 	}
 }
 
-.edit-post-header-toolbar__inserter-toggle {
+.edit-post-header-toolbar > .edit-post-header-toolbar__inserter-toggle {
 	margin-right: $grid-unit-10;
+	// Special dimensions for this button.
+	min-width: 32px;
+	width: 32px;
+	height: 32px;
+	padding: 0;
 }
diff --git a/packages/interface/src/components/admin-menu-toggle/style.scss b/packages/interface/src/components/admin-menu-toggle/style.scss
index 4b9689643feeeb..7c6ce12daa1165 100644
--- a/packages/interface/src/components/admin-menu-toggle/style.scss
+++ b/packages/interface/src/components/admin-menu-toggle/style.scss
@@ -10,7 +10,6 @@
 		border: none;
 		border-radius: 0;
 		height: auto;
-		margin-right: -8px;
 		width: $header-height;
 		background: #23282e; // WP-admin gray.
 		transition: all 0.12s ease-in-out;