fix typos in main.css and remote letter spacing

Author: azet

main.css

@@ -29,7 +29,6 @@ h1 {
 h2 {
     font-size:              12pt;
     font-weight:            inherit;
-    letter-spacing:         2pt;
     word-spacing:           2pt;
     padding:                10px;
     margin:                 10px;
@@ -41,7 +40,7 @@ h3 {
     font-weight:            inherit;
     padding:                4px;
     margin:                 0 auto;
-    margin-bottom:          5pautox;
+    margin-bottom:          5px auto;
     border-bottom:          1px dotted grey;
 }
 address {