aa

style.css

@@ -62,3 +62,9 @@ a {text-decoration-line: underline; font-weight: 600;}
   overflow-anchor: auto;
   height: 1px;
 }*/
+#help_text {
+  display: none; /* initially hidden */
+}
+#help_text:target {
+  display: block; /* show when the link is clicked */
+}