helvetica as base font

web/templates/header.html

@@ -9,7 +9,7 @@
                 margin-left: auto;
                 margin-right: auto;
                 background-image: url(/images/b.png);
-                font-family: Arial, sans-serif;
+                font-family: Helvetica, Arial, sans-serif;
             }
 
             form {
@@ -541,6 +541,7 @@
                 border: 1px solid #ACACAC;
                 border-radius: 3px 3px 3px 3px;
                 font-size: 12px;
+                font-family: Helvetica, Arial, sans-serif;
                 padding: 2px 16px;
                 width: 108px;
                 height: 24px;
@@ -562,6 +563,7 @@
                 border: 1px solid #ACACAC;
                 border-radius: 3px 3px 3px 3px;
                 font-size: 14px;
+                font-family: Helvetica, Arial, sans-serif;
                 padding: 2px 16px;
                 width: 108px;
                 height: 32px;