diff --git a/IPython/html/static/notebook/less/highlight.less b/IPython/html/static/notebook/less/highlight.less
index aff553c..59499c7 100644
--- a/IPython/html/static/notebook/less/highlight.less
+++ b/IPython/html/static/notebook/less/highlight.less
@@ -155,3 +155,10 @@ pre .xml .cdata {
 .cm-s-ipython span.cm-error { color: #f00; }
 .cm-s-ipython span.cm-operator {color: #AA22FF; font-weight: bold;}
 .cm-s-ipython span.cm-meta {color: #AA22FF;}
+
+.cm-s-ipython span.cm-tab {
+         background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAMCAYAAAAkuj5RAAAAAXNSR0IArs4c6QAAAGFJREFUSMft1LsRQFAQheHPowAKoACx3IgEKtaEHujDjORSgWTH/ZOdnZOcM/sgk/kFFWY0qV8foQwS4MKBCS3qR6ixBJvElOobYAtivseIE120FaowJPN75GMu8j/LfMwNjh4HUpwg4LUAAAAASUVORK5CYII=);
+         background-position: right;
+         background-repeat: no-repeat;
+         background-color: #FCA9B3;
+}
diff --git a/IPython/html/static/style/ipython.min.css b/IPython/html/static/style/ipython.min.css
index 883a5f0..0a98cdc 100644
--- a/IPython/html/static/style/ipython.min.css
+++ b/IPython/html/static/style/ipython.min.css
@@ -125,6 +125,7 @@ pre .coffeescript .javascript,pre .javascript .xml,pre .tex .formula,pre .xml .j
 .cm-s-ipython span.cm-error{color:#f00;}
 .cm-s-ipython span.cm-operator{color:#AA22FF;font-weight:bold;}
 .cm-s-ipython span.cm-meta{color:#AA22FF;}
+.cm-s-ipython span.cm-tab{background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAMCAYAAAAkuj5RAAAAAXNSR0IArs4c6QAAAGFJREFUSMft1LsRQFAQheHPowAKoACx3IgEKtaEHujDjORSgWTH/ZOdnZOcM/sgk/kFFWY0qV8foQwS4MKBCS3qR6ixBJvElOobYAtivseIE120FaowJPN75GMu8j/LfMwNjh4HUpwg4LUAAAAASUVORK5CYII=);background-position:right;background-repeat:no-repeat;background-color:#FCA9B3;}
 #menubar .navbar-inner{min-height:28px;border-top:1px;border-radius:0px 0px 4px 4px;}
 #menubar .navbar{margin-bottom:8px;}
 .nav-wrapper{border-bottom:1px solid #d4d4d4;}
diff --git a/IPython/html/static/style/style.min.css b/IPython/html/static/style/style.min.css
index a110bc3..560199d 100644
--- a/IPython/html/static/style/style.min.css
+++ b/IPython/html/static/style/style.min.css
@@ -1492,6 +1492,7 @@ pre .coffeescript .javascript,pre .javascript .xml,pre .tex .formula,pre .xml .j
 .cm-s-ipython span.cm-error{color:#f00;}
 .cm-s-ipython span.cm-operator{color:#AA22FF;font-weight:bold;}
 .cm-s-ipython span.cm-meta{color:#AA22FF;}
+.cm-s-ipython span.cm-tab{background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAMCAYAAAAkuj5RAAAAAXNSR0IArs4c6QAAAGFJREFUSMft1LsRQFAQheHPowAKoACx3IgEKtaEHujDjORSgWTH/ZOdnZOcM/sgk/kFFWY0qV8foQwS4MKBCS3qR6ixBJvElOobYAtivseIE120FaowJPN75GMu8j/LfMwNjh4HUpwg4LUAAAAASUVORK5CYII=);background-position:right;background-repeat:no-repeat;background-color:#FCA9B3;}
 #menubar .navbar-inner{min-height:28px;border-top:1px;border-radius:0px 0px 4px 4px;}
 #menubar .navbar{margin-bottom:8px;}
 .nav-wrapper{border-bottom:1px solid #d4d4d4;}