diff --git a/css/base.less b/css/base.less
index 846e6cb..6e34a63 100755
--- a/css/base.less
+++ b/css/base.less
@@ -25,6 +25,7 @@
 
 @color-link:         __existing__;
 
+@margin-default:     1.5rem;
 @margin-big:         2.5rem;
 
 
@@ -36,6 +37,10 @@
 /* + + + + + + + + + + + + + + + + + + + + + + + + + + */
 /* fonts */
 
+@font-size-default: 1rem;
+@font-size-big: 1.5rem;
+@font-size-bigger: 1.75rem;
+
 @line-height-default: 125%;
 @line-height-big: 135%;
 @line-height-bigger: 140%;