Button font sizes

theme/rc3/theme.json

@@ -29,9 +29,11 @@
     "banner-height": "15vh",
     "banner-height-mobile": "10vh",
     "focus-color": "blue",
+    "font-size-header": "14px",
+    "font-size-header-mobile": "24px",
+    "font-size-button-mobile": "24px",
     "font-size-links": "12px",
     "font-size-newswire": "12px",
-    "font-size-button-mobile": "26px",
     "font-size": "22px",
     "font-size2": "16px",
     "font-size3": "30px",