diff --git a/ionic/components/button/button-fab.scss b/ionic/components/button/button-fab.scss
index 7494950782..eaa925c709 100644
--- a/ionic/components/button/button-fab.scss
+++ b/ionic/components/button/button-fab.scss
@@ -31,23 +31,23 @@ $button-fab-size:           56px !default;
 
 }
 
-.button-fab-center {
+[fab-center] {
   left: 50%;
   margin-left: -$button-fab-size / 2;
 }
 
-.button-fab-top {
+[fab-top] {
   top: 16px;
 }
 
-.button-fab-right {
+[fab-right] {
   right: 16px;
 }
 
-.button-fab-bottom {
+[fab-bottom] {
   bottom: 16px;
 }
 
-.button-fab-left {
+[fab-left] {
   left: 16px;
 }
diff --git a/ionic/components/button/button-icon.scss b/ionic/components/button/button-icon.scss
index 62870852b7..ea334e0422 100644
--- a/ionic/components/button/button-icon.scss
+++ b/ionic/components/button/button-icon.scss
@@ -5,7 +5,6 @@
 
 
 .button-icon-left icon {
-  margin-left: -0.3em;
   padding-right: 0.3em;
   font-size: 1.4em;
   line-height: 0.67;