extend h1-6 with .h1-6

src/scss/style.scss

@@ -3,3 +3,27 @@
 @import "typography";
 @import "base";
 @import "layout";
+
+.h1 {
+	@extend h1;
+}
+
+.h2 {
+	@extend h2;
+}
+
+.h3 {
+	@extend h3;
+}
+
+.h4 {
+	@extend h4;
+}
+
+.h5 {
+	@extend h5;
+}
+
+.h6 {
+	@extend h6;
+}