add adaptive title size

Author: automaticdai

static/css/style.css

@@ -26,7 +26,7 @@ body {
 }
 
 .bg-color-grey {
-  background-color: #eeeeee;
+  background-color: #ececec;
 }
 
 .bg-color-black {
@@ -36,3 +36,9 @@ body {
 .fg-color-white {
   color: #fefefe;
 }
+
+@media screen and (max-width: 600px) {
+  h1 {
+    font-size: 3em;
+  }
+}