Section 6 : do correct alignment, heading is centered, and subheading is left-aligned

style.css

@@ -11,11 +11,13 @@ body {
 .text-shadow {
   text-shadow: 0 2px 4px rgba(0,0,0,0.3);
 }
-/* Center section headings */
-section h3 {
+/* Section heading alignment */
+section h2 {
   text-align: center;
 }
-
+section h3 {
+  text-align: left;
+}
 /* Modal styles */
 .modal-content {
 position: relative;