diff --git a/IPython/frontend/html/notebook/static/css/notebook.css b/IPython/frontend/html/notebook/static/css/notebook.css
index 495f32a97..ee9d37ffd 100644
--- a/IPython/frontend/html/notebook/static/css/notebook.css
+++ b/IPython/frontend/html/notebook/static/css/notebook.css
@@ -257,11 +257,11 @@ div.text_cell_render {
 .ansigrey {color: grey;}
 .ansibold {font-weight: bold;}
 
-.completions , .tooltip {
+.completions {
     position: absolute;
     z-index: 10;
     overflow: auto;
-    border: 1px solid black;
+    border: 1px solid grey;
 }
 
 .completions select {
diff --git a/IPython/frontend/html/notebook/static/css/tooltip.css b/IPython/frontend/html/notebook/static/css/tooltip.css
index f84d81660..3722179b9 100644
--- a/IPython/frontend/html/notebook/static/css/tooltip.css
+++ b/IPython/frontend/html/notebook/static/css/tooltip.css
@@ -3,24 +3,15 @@
  *
  * Author: IPython Development Team
  */
-/**
- * WARNING IF YOU ARE EDITTING THIS FILE, 
- * if this is a .css file, It has a lot of chance of beeing generated from the
- * ../css/[samename].less file, it might not stay a less file forever, 
- * but as until now it is convenient to developp using less
- * 
- * it it's a less file, don't forget to recompile it 
- */
+/** WARNING IF YOU ARE EDITTING THIS FILE, if this is a .css file, It has a lot
+ * of chance of beeing generated from the ../less/[samename].less file, you can
+ * try to get back the less file by reverting somme commit in history
+ **/
 /*
- * We'll try to get something prety, so we
+ * We'll try to get something pretty, so we
  * have some strange ccs to have the scroll bar on
  * the left of the left with fix button on the top right of the tooltip
  */
-.dropshadow {
-  -moz-box-shadow: 0px 6px 10px -1px #adadad;
-  -webkit-box-shadow: 0px 6px 10px -1px #adadad;
-  box-shadow: 0px 6px 10px -1px #adadad;
-}
 @-moz-keyframes fadeOut {
   from {
     opacity: 1;
@@ -107,7 +98,6 @@
   vertical-align: middle;
   background-color: #f7f7f7;
   overflow: visible;
-  color: #000000;
   border: #bbbbbb 1px solid;
   outline: none;
   padding: 3px;
diff --git a/IPython/frontend/html/notebook/static/less/tooltip.less b/IPython/frontend/html/notebook/static/less/tooltip.less
index 8d9ee95da..e9b28a5db 100644
--- a/IPython/frontend/html/notebook/static/less/tooltip.less
+++ b/IPython/frontend/html/notebook/static/less/tooltip.less
@@ -4,17 +4,14 @@
  * Author: IPython Development Team
  */
 
-/**
- * WARNING IF YOU ARE EDITTING THIS FILE, 
- * if this is a .css file, It has a lot of chance of beeing generated from the
- * ../css/[samename].less file, it might not stay a less file forever, 
- * but as until now it is convenient to developp using less
- * 
- * it it's a less file, don't forget to recompile it 
- */
+/** WARNING IF YOU ARE EDITTING THIS FILE, if this is a .css file, It has a lot
+ * of chance of beeing generated from the ../less/[samename].less file, you can
+ * try to get back the less file by reverting somme commit in history
+ **/
+
 /*
- * We'll try to get something prety, so we
- * have some strange ccs to have the scroll bar on
+ * We'll try to get something pretty, so we
+ * have some strange css to have the scroll bar on
  * the left of the left with fix button on the top right of the tooltip
  */
 
@@ -24,15 +21,11 @@
 // **/
 
 // Four color of the background
-@c1 : rgb(215,215,215);
-@c2 : rgb(210,210,210);
-@c3 : rgb(227,227,227);
 @c4 : rgb(247,247,247);
 @bordercolor : #BBB;
 @borderwidth : 1px;
-@textColor : #000;
 
-.dropshadow{
+.dropshadow(){
  -moz-box-shadow:    0px 6px 10px -1px #adadad;
   -webkit-box-shadow: 0px 6px 10px -1px #adadad;
   box-shadow:         0px 6px 10px -1px #adadad;
@@ -96,6 +89,7 @@
     overflow: hidden;
     height:80px;
 }
+
 .tooltipbuttons
 {
     position: absolute;
@@ -103,6 +97,7 @@
     top : 0px;
     right:0px;
 }
+
 .tooltiptext
 {   
     /*avoid the button to overlap on some docstring*/
@@ -124,7 +119,6 @@
     background-color: @c4;
     
     overflow : visible;
-    color: @textColor;
     border: @bordercolor @borderwidth solid;
     outline: none;
     padding: 3px;
@@ -146,6 +140,7 @@
   position: absolute;
 
 }
+
 .pretooltiparrow:before {
   background-color : @c4;
   border : @borderwidth @bordercolor solid; 
@@ -161,7 +156,6 @@
   -moz-transform:    rotate(@theta);
   -ms-transform:     rotate(@theta);
   -o-transform:      rotate(@theta);
-
 }
 
 .tooltip.hide