fix cell type selector css

IPython/frontend/html/notebook/static/css/style.min.css

@@ -25,6 +25,7 span#notebook_name{height:1em;line-height:1em;padding:3px;border:none;font-size:
 #notification_area{position:absolute;right:0px;top:0px;height:25px;padding:3px 0px;padding-right:3px;z-index:10;}
 .notification_widget{float:right;right:0px;top:1px;height:25px;padding:3px 6px;z-index:10;}
 .toolbar{padding:3px 15px;border-bottom:1px #e0e0e0 solid;}
+.toolbar>select{height:23px;vertical-align:top;margin-right:2px;margin-bottom:0;}
 #cell_type{font-size:85%;}
 #ipython-main-app{width:100%;position:relative;}
 span#quick_help_area{position:static;padding:5px 0px;margin:0px 0px 0px 0px;}

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

@@ -85,6 +85,13 span#notebook_name {
 }
 
 #maintoolbar > select, #maintoolbar label {
+    height : 23px;
+    vertical-align: top;
+    margin-right:2px;
+    margin-bottom:0;
+}
+
+#cell_type {
     font-size: 85%;
     margin-left:0.3em;
     margin-right:0.3em;