diff --git a/_sass/_coderay.scss b/_sass/_coderay.scss
index 200fd8c..fd30bb2 100644
--- a/_sass/_coderay.scss
+++ b/_sass/_coderay.scss
@@ -1,7 +1,7 @@
 .CodeRay {
   background-color: #efefef;
   font-family: $code-font;
-  @include font(12);
+  @include font-size(12);
   color: #333332;
   margin-bottom: 1.5em;
   @include rounded(4px);
diff --git a/_sass/_mixins.scss b/_sass/_mixins.scss
index d7427f7..96516ed 100644
--- a/_sass/_mixins.scss
+++ b/_sass/_mixins.scss
@@ -19,34 +19,6 @@
   margin-right: auto;
 }
 
-// TYPOGRAPHY
-// --------------------------------------------------
-
-// Full-fat vertical rhythm
-// ------------------------
-@mixin font-size($size) {
-  font-size: 0px + $size;
-  font-size: 0rem + $size / $doc-font-size;
-  line-height: 0 + round($doc-line-height / $size*10000) / 10000;
-  margin-bottom: 0px + $doc-line-height;
-  margin-bottom: 0rem + ($doc-line-height / $doc-font-size);
-}
-
-// Just the REMs
-// -------------
-@mixin font-rem($size) {
-  font-size: 0px + $size;
-  font-size: 0rem + $size / $doc-font-size;
-}
-
-// Just font-size and line-height
-// ------------------------------
-@mixin font($size) {
-  font-size: 0px + $size;
-  font-size: 0rem + $size / $doc-font-size;
-  line-height: 0 + round($doc-line-height / $size*10000) / 10000;
-}
-
 @mixin text-overflow() {
 overflow: hidden;
 text-overflow: ellipsis;