diff --git a/source/wp-content/themes/wporg-parent-2021/sass/editor.scss b/source/wp-content/themes/wporg-parent-2021/sass/editor.scss
index 87d29514..83dd4016 100644
--- a/source/wp-content/themes/wporg-parent-2021/sass/editor.scss
+++ b/source/wp-content/themes/wporg-parent-2021/sass/editor.scss
@@ -20,6 +20,11 @@
 	justify-content: stretch;
 }
 
+// Override the browser native styling to match the frontend.
+mark.has-inline-color {
+	background-color: transparent;
+}
+
 // Overwrite a style from wp4.css.
 h3 a {
 	font-weight: revert; // stylelint-disable-line font-weight-notation