diff --git a/assets/css/common.css.sass b/assets/css/common.css.sass
index e69de29..c92831e 100644
--- a/assets/css/common.css.sass
+++ b/assets/css/common.css.sass
@@ -0,0 +1,2 @@
+*
+  @include box-sizing(border-box)
diff --git a/assets/css/controls.css.sass b/assets/css/controls.css.sass
index f60dbe5..2455451 100644
--- a/assets/css/controls.css.sass
+++ b/assets/css/controls.css.sass
@@ -1,2 +1,6 @@
 #controls button
   @extend .icon
+  font-size: 2em
+  width: 2em
+  padding: 0.5em
+  text-align: center
diff --git a/assets/css/mpd-client.css.sass b/assets/css/mpd-client.css.sass
index 7f3a3d2..23b1760 100644
--- a/assets/css/mpd-client.css.sass
+++ b/assets/css/mpd-client.css.sass
@@ -1,3 +1,5 @@
+@import 'bourbon/bourbon'
+
 @import 'includes/fonts'
 @import 'common'
 @import 'controls'