Add check for className (fixes #1)

sortabrilliant · Feb 8, 2020 · 65c8fb3 · 65c8fb3
1 parent 342f1e2
commit 65c8fb3
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/layout-settings.js b/src/layout-settings.js
@@ -109,8 +109,13 @@ const addProps = ( props, blockType, { columns, showColumnsOnMobile } ) => {
 		return props;
 	}
 
-	const className = classnames( `wp-block-list--${ columns }-columns`, {
+	if ( typeof props.className === 'undefined' || ! props.className ) {
+		return props;
+	}
+
+	const className = classnames( {
 		'wp-block-list--show-columns-on-mobile': showColumnsOnMobile,
+		[ `wp-block-list--${ columns }-columns` ]: Number( columns ) > 1,
 	} );
 
 	return assign( props, {