diff --git a/block-styles.css b/block-styles.css
index edb81fb..9bf7883 100644
--- a/block-styles.css
+++ b/block-styles.css
@@ -1,13 +1,13 @@
 
 /* For the "Tabbed Heading" block style */
-.wp-block-heading.is-style-tabbed-heading {
+.is-style-tabbed-heading {
   display: flex;
   height: 36px;
   align-items: center;
   border-top: 1px solid;
 }
 
-.wp-block-heading.is-style-tabbed-heading::before {
+.is-style-tabbed-heading::before {
   content: "";
   border-bottom: 1px solid;
   border-right: 1px solid;
@@ -17,7 +17,7 @@
   border-top: 2px solid var(--wp--preset--color--background);
 }
 
-.wp-block-heading.is-style-tabbed-heading::after {
+.is-style-tabbed-heading::after {
   content: "";
   border-bottom: 1px solid;
   flex-grow: 1;