fix celltoolbar css

IPython/frontend/html/notebook/static/css/celltoolbar.css

@@ -5,11 +5,20 b''
     border: thin solid #CFCFCF;
     margin-left: 0px;
     border-bottom: none;
+        margin:0;
+    padding:0;
     background : #EEE;
     border-top-right-radius: 3px;
     border-top-left-radius: 3px;
 }
 
+.celltoolbar div{
+    line-height: 0;
+    margin:0;
+    padding:0;
+  }
+
+
 .no_input_radius {
     border-top-right-radius: 0px;
     border-top-left-radius: 0px;
@@ -27,6 +36,13 b''
     display: none;
 }
 
+.ctb_area {
+    margin:0;
+    padding:0;
+
+}
+
+
 /*ctb_show is added to either body or the ctb_hideshow div to show
 all or one cell's toolbars.
 */
@@ -67,10 +83,11 b" all or one cell's toolbars."
 
 .celltoolbar label{
     display:inline;
+    line-height:13px;
 }
 
 .celltoolbar label span {
-    font-size: 87%;
+    font-size: 85%;
 }
 
 .celltoolbar input[type=checkbox] {

IPython/frontend/html/notebook/static/less/notebook.less

@@ -86,17 +86,23 b' span#notebook_name {'
 .toolbar {
     padding: 3px 15px;
     border-bottom: @borderwidth @border_color solid;
-}
 
-.toolbar select, .toolbar label {
-    height : 19px;
-    vertical-align: top;
-    margin-right:2px;
-    margin-bottom:0;
-    display: inline;
-    font-size: 92%;
-    margin-left:0.3em;
-    margin-right:0.3em;
+    button {
+        margin-top:2px;
+        margin-bottom:2px;
+    }
+
+
+    select, label {
+        height : 19px;
+        vertical-align:middle;
+        margin-right:2px;
+        margin-bottom:0;
+        display: inline;
+        font-size: 92%;
+        margin-left:0.3em;
+        margin-right:0.3em;
+    }
 }
 
 .toolbar select{

IPython/frontend/html/notebook/static/less/variables.less

@@ -1,4 +1,4 b''
-@corner_radius: 3px;
+@corner_radius: 4px;
 @notebook_background : white;
 @cell_selected_background: darken(@notebook_background, 2%);
 @cell_background: darken(@notebook_background, 3.2%);