diff -r 1796e0220bef -r 408da84d4dc0 client/css/renkan.css
--- a/client/css/renkan.css	Fri Apr 19 13:39:39 2013 +0200
+++ b/client/css/renkan.css	Fri Apr 19 15:31:56 2013 +0200
@@ -42,7 +42,7 @@
 }
 
 html {
-	overflow: hidden;
+    overflow: hidden;
 }
 
 body {
@@ -185,11 +185,11 @@
 }
 
 .Rk-Save-Button.Rk-Save-ReadOnly, .Rk-Save-Button.Rk-Save-ReadOnly:hover {
-	background-position: -172px -35px;
+    background-position: -172px -35px;
 }
 
 .Rk-Save-Button.Rk-Save-Online, .Rk-Save-Button.Rk-Save-Online:hover {
-	background-position: -172px 0;
+    background-position: -172px 0;
 }
 
 .Rk-Bookmarklet-Button {
@@ -211,14 +211,14 @@
 /* Canvas */
 
 .Rk-Editing-Space {
-	position: absolute; left: 0; top: 35px; right: 0; bottom: 0; overflow: hidden;
-	background: -moz-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
-	background: -webkit-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
-	background: -ms-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
+    position: absolute; left: 0; top: 35px; right: 0; bottom: 0; overflow: hidden;
+    background: -moz-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
+    background: -webkit-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
+    background: -ms-radial-gradient( center, circle, #ffffff 40%, #e0e0e0 90%);
 }
 
 .Rk-Editing-Space-Full {
-	top: 0;
+    top: 0;
 }
 
 .Rk-Canvas {
@@ -233,12 +233,12 @@
 }
 
 .Rk-Label {
-	position: absolute; width: 160px; margin-left: -80px; text-align: center; font-size: 13px; line-height: 13px;
+    position: absolute; width: 160px; margin-left: -80px; text-align: center; font-size: 13px; line-height: 13px;
 }
 
 .Rk-Edge-Label {
-	font-size: 11px; transform-origin: 50% 0; -moz-transform-origin: 50% 0;
-	-webkit-transform-origin: 50% 0; -ms-transform-origin: 50% 0;
+    font-size: 11px; transform-origin: 50% 0; -moz-transform-origin: 50% 0;
+    -webkit-transform-origin: 50% 0; -ms-transform-origin: 50% 0;
 }
 
 /* Editors */
@@ -325,47 +325,47 @@
 }
 
 .Rk-Edit-Size-Up, .Rk-Edit-Size-Down {
-	font-size: 13px; font-weight: bold; padding: 0 4px; background: #ffffff; color: #000000; border: 1px solid #cccccc;
-	text-decoration: none;
+    font-size: 13px; font-weight: bold; padding: 0 4px; background: #ffffff; color: #000000; border: 1px solid #cccccc;
+    text-decoration: none;
 }
 
 .Rk-Edit-Size-Up:hover, .Rk-Edit-Size-Down:hover {
-	background: #666666;
+    background: #666666;
 }
 
 .Rk-Edit-Size-Value {
-	display: inline-block;
+    display: inline-block;
     padding: 0 5px;
     text-align: center;
     width: 20px;
 }
 
 .Rk-Edit-Vocabulary-Class {
-	color: #999999; font-style: italic; font-weight: bold;
+    color: #999999; font-style: italic; font-weight: bold;
 }
 
 .Rk-Edit-Vocabulary-Property {
-	padding-left: 20px;
+    padding-left: 20px;
 }
 
 .Rk-Edit-Direction {
-	border: 1px solid #666; padding: 3px 5px; line-height: 20px; border-radius: 3px; background: #f0f0f0; cursor: pointer;
+    border: 1px solid #666; padding: 3px 5px; line-height: 20px; border-radius: 3px; background: #f0f0f0; cursor: pointer;
 }
 
 .Rk-Edit-Direction:hover {
-	background: #c0c0c0;
+    background: #c0c0c0;
 }
 
 .Rk-Display-Title a {
-	text-decoration: none; color: #000000;
+    text-decoration: none; color: #000000;
 }
 
 .Rk-Display-Title a:hover {
-	text-decoration: underline;
+    text-decoration: underline;
 }
 
 .Rk-Display-URI {
-	font-style: italic;
+    font-style: italic;
 }
 
 .Rk-Display-ImgPreview {
@@ -373,13 +373,13 @@
 }
 
 .Rk-Fold-Bins {
-	position: absolute; top: 5px; width: 12px; text-align: center; font-size: 16px; cursor: pointer;
-	line-height: 16px; padding: 4px; color: #ffffff; background: #666666; border-radius: 0 6px 6px 0;
-	font-weight: bold;
+    position: absolute; top: 5px; width: 12px; text-align: center; font-size: 16px; cursor: pointer;
+    line-height: 16px; padding: 4px; color: #ffffff; background: #666666; border-radius: 0 6px 6px 0;
+    font-weight: bold;
 }
 
 .Rk-Fold-Bins:hover {
-	background: #333333;
+    background: #333333;
 }
 
 .Rk-ZoomButtons {
@@ -571,7 +571,7 @@
 }
 
 .Rk-Bin-Main h4 a {
-	color: #303080;
+    color: #303080;
 }
 
 .Rk-Twitter-Icon {
@@ -635,7 +635,7 @@
 }
 
 .Rk-ResourceList-Image {
-	float: left; max-width: 100px; max-height: 75px; margin-right: 2px;
+    float: left; max-width: 100px; max-height: 75px; margin-right: 2px;
 }
 
 .Rk-Ldt-Icon, .Rk-Ldt-Title-Icon {