diff --git a/addons/base_gantt/static/lib/dhtmlxGantt/sources/dhtmlxgantt.js b/addons/base_gantt/static/lib/dhtmlxGantt/sources/dhtmlxgantt.js
index 0d838fdd510..50459be3077 100644
--- a/addons/base_gantt/static/lib/dhtmlxGantt/sources/dhtmlxgantt.js
+++ b/addons/base_gantt/static/lib/dhtmlxGantt/sources/dhtmlxgantt.js
@@ -2844,7 +2844,7 @@ GanttChart.prototype.create = function(divId)
     var newCellTblControl;
 
     //Add to content Table
-    this.contentHeight = content.offsetHeight;
+    this.contentHeight = screen.height * 0.3;
     this.contentWidth = content.offsetWidth;
     content.appendChild(tableControl);
 
@@ -2891,6 +2891,8 @@ GanttChart.prototype.create = function(divId)
     if (this._showTreePanel) {
         this.panelNames.style.height = (this.contentHeight - 56) + "px";
         this.panelNames.style.width = this.maxWidthPanelNames + "px";
+        this.panelTime.className = "ganttDayPanel";
+        this.oData.className = "ganttTaskPanel"; 
         this.oData.style.width = (this.contentWidth - this.maxWidthPanelNames) + "px";
         this.panelTasks.style.width = this.dayInPixels * this.countDays + "px";
         this.panelTime.style.width = (this.contentWidth - this.maxWidthPanelNames - 0*18) + "px";
diff --git a/addons/base_gantt/static/src/js/gantt.js b/addons/base_gantt/static/src/js/gantt.js
index b6c103a4fbb..e95507f1a03 100644
--- a/addons/base_gantt/static/src/js/gantt.js
+++ b/addons/base_gantt/static/src/js/gantt.js
@@ -74,6 +74,12 @@ init: function(view_manager, session, element_id, dataset, view_id) {
         ganttChartControl.showContextMenu(true);
         ganttChartControl.showDescTask(true,'d,s-f');
         ganttChartControl.showDescProject(true,'n,d');
+        
+        jQuery(".toggle-sidebar").click(function(e) {
+            var $gantt_panel = jQuery(".ganttTaskPanel , .ganttDayPanel");
+            $gantt_panel.width(100);
+            $gantt_panel.width(jQuery("#oe_app_search").width() - 150);
+        });
 
     },
 
diff --git a/addons/base_gantt/static/src/xml/base_gantt.xml b/addons/base_gantt/static/src/xml/base_gantt.xml
index c85abf0cad8..e9a95057b24 100644
--- a/addons/base_gantt/static/src/xml/base_gantt.xml
+++ b/addons/base_gantt/static/src/xml/base_gantt.xml
@@ -1,12 +1,5 @@
 <template>
   <t t-name="GanttView">
-    <h3 class="title"><t t-esc="view.fields_view.arch.attrs.string"/></h3>
-    <table class="gantt-view" width="100%" height="100%" cellspacing="0" cellpadding="0">
-      <tr>
-        <td>
-          <div style="width:100%;height:300px;position:relative" id="GanttDiv"/>
-        </td>
-      </tr>
-    </table>
+   <div style="width:100%;padding-top:10px;position:relative" id="GanttDiv"/>
   </t>
 </template>