Make notes that start with a heading not have extra empty space on top

www/css/notecards.css

@@ -73,6 +73,10 @@ file, You can obtain one at http://mozilla.org/MPL/2.0/.
     max-width: 100%;
 }
 
+.notecard .card-content h1:nth-child(2), .notecard .card-content h2:nth-child(2), .notecard .card-content h3:nth-child(2), .notecard .card-content h4:nth-child(2), .notecard .card-content h5:nth-child(2), .notecard .card-content h6:nth-child(2) {
+    margin-top: 0px;
+}
+
 .notecard {
     min-height: 4em;
 }