Fixed #34: IE11 on Windows 7 doesn't honor max-width on main tag

src/assets/stylesheets/_reset.scss

@@ -72,6 +72,14 @@ time, mark, audio, video {
   border: 0;
 }
 
+/*
+ * Enforce correct rendering of main element - missing in user agent stylesheet
+ * of IE11 on Windows 7.
+ */
+main {
+  display: block;
+}
+
 /*
  * Reset list styles
  */