diff --git a/api/templates/default/etemplate2.css b/api/templates/default/etemplate2.css
index f3cf7ffdef..8d3e1cc2d3 100644
--- a/api/templates/default/etemplate2.css
+++ b/api/templates/default/etemplate2.css
@@ -2551,107 +2551,6 @@ span.et2_checkbox_slideSwitch.switchOn > span.slideSwitch_container a {
 	margin-right: 10px;
 }
 
-.et2_gantt, .et2_gantt .gantt_container
-{
-	width: 100%;
-	min-height: 300px;
-	overflow: hidden;
-}
-.et2_gantt .gantt_tree_icon
-{
-	background-size: 18px;
-}
-.et2_gantt .gantt_side_content
-{
-	overflow: visible;
-}
-/* Style the gantt grid (left side) allowing 2 lines */
-.et2_gantt .gantt_grid_scale :not(.gantt_grid_head_add) {
-	white-space: normal;
-	line-height: 16px;
-	height: auto;
-}
-/* Column selector */
-.et2_gantt .gantt_grid_scale .gantt_grid_head_add {
-	background-image: url(images/selectcols.png);
-	padding: 0px;
-	margin: 0px;
-}
-.et2_gantt .gantt_grid_data .gantt_add {
-	display: none;
-	padding: 0px;
-	margin: 0px;
-}
-/* Display inline, since there's only 1 line*/
-.et2_gantt .gantt_grid_data li {
-	display: inline-block;
-	padding-right: 0.5ex;
-}
-.et2_gantt .gantt_task_progress
-{
-	text-align: left;
-	color: white;
-	overflow: hidden;
-	text-overflow: clip;
-	white-space: nowrap;
-}
-.et2_gantt .gantt_task_progress > span
-{
-	font-weight: bold;
-	margin: 0 1ex;
-}
-.et2_gantt .weekend
-{
-	background-color: #f4f7f4;
-}
-.et2_gantt .gantt_selected .weekend
-{
-	background-color: #f7eb91;
-}
-.et2_gantt .gantt_task_link.invalid_constraint .gantt_line_wrapper div
-{
-	background-color: red;
-}
-.et2_gantt .gantt_task_link.invalid_constraint .gantt_link_arrow_left
-{
-	border-right-color: red;
-}
-.et2_gantt .gantt_task_link.invalid_constraint .gantt_link_arrow_right
-{
-	border-left-color: red;
-}
-.et2_gantt .gantt_task_planned
-{
-	height: 10px;
-	position: absolute;
-	opacity: 0.3;
-	border-style: outset;
-	border-width: 2px;
-	border-top: none;
-	border-bottom: none;
-	width: 2px;
-}
-.et2_gantt .gantt_task_planned:hover span {
-	display:inline;
-}
-.et2_gantt .gantt_task_planned span
-{
-	z-index: 10;
-	display: none;
-	background: white;
-	position: relative;
-	top: 2em;
-}
-.et2_gantt .gantt_left .gantt_task_planned
-{
-	border-right: none;
-}
-.et2_gantt .gantt_right .gantt_task_planned
-{
-	border-left: none;
-	top: 25px;
-}
-
 /**
  * Do not wrap content of a single widget incl. a label or children of a hbox.
  * Taking into eg. select-account widget rendered as ul and prefixed with a label