diff --git a/src/scss/support/_variables.scss b/src/scss/support/_variables.scss
index b2a1ee8..05c18fc 100644
--- a/src/scss/support/_variables.scss
+++ b/src/scss/support/_variables.scss
@@ -1,6 +1,9 @@
 $pretty--class-name: pretty !default;
 
+$pretty--i-margin-right: 2px !default;
+
 $pretty--border-radius: 0 !default;
+$pretty--border-size: 1px !default;
 
 $pretty--color-primary: #428bca !default;
 $pretty--color-success: #5cb85c !default;