Reduce number of font size

assets/sass/_form.sass

@@ -12,7 +12,7 @@ input
     border: 1px solid #ccc
     width: 300px
     max-width: 95%
-    font-size: 100%
+    font-size: $text-normal
     height: 25px
     padding-bottom: 0
     font-family: sans-serif
@@ -39,7 +39,6 @@ textarea
   width: 400px
   max-width: 99%
   height: 200px
-  font-size: 100%
   font-family: sans-serif
 
 select
@@ -81,7 +80,7 @@ ul.form-errors li
   margin-left: 0
 
 .form-help
-  font-size: 0.8em
+  font-size: $text-small
   color: brown
   margin-bottom: 15px
 
@@ -124,11 +123,9 @@ input
     line-height: 25px
   h2
     margin-bottom: 30px
-    font-size: 1.5em
     font-weight: bold
 
 .reset-password
   margin-top: 20px
   a
-    font-size: 0.8em
     color: #999