diff --git a/app_mrp_production_zchart/static/description/index.html b/app_mrp_production_zchart/static/description/index.html
index 30f5abfe..1ace703a 100644
--- a/app_mrp_production_zchart/static/description/index.html
+++ b/app_mrp_production_zchart/static/description/index.html
@@ -1,4 +1,4 @@
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced" style="max-width: 95%;">
         <h2 class="oe_slogan" style="color:#875A7B;">MRP Production Chart Hierarchy, For Multi level MO MRP Production Order from multi bom.</h2>
         <h3 class="oe_slogan">Very useful for show parent child relationship, like product category, stock location, hr department</h3>
@@ -8,7 +8,7 @@
         </div>
 
 </section>
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced">
         <div class="row">
             <div class="alert alert-info" style="padding:8px;font-weight: 300; font-size: 20px;">
@@ -89,7 +89,7 @@
     </div>
 </section>
 
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced">
         <h2>&nbsp;</h2>
         <h2 class="bg-warning text-center pt8 pb8">MRP Production Chart Hierarchy</h2>
@@ -107,7 +107,7 @@
     </div>
 </section>
 
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced">
         <h2>&nbsp;</h2>
         <h2 class="bg-warning text-center pt8 pb8">Product category Chart Hierarchy</h2>
@@ -121,7 +121,7 @@
     </div>
 </section>
 
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced">
         <h2>&nbsp;</h2>
         <h2 class="bg-warning text-center pt8 pb8">Stock Location Chart Hierarchy</h2>
@@ -131,7 +131,7 @@
     </div>
 </section>
 
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced">
         <h2>&nbsp;</h2>
         <h2 class="bg-warning text-center pt8 pb8">HR Department Chart Hierarchy</h2>
@@ -144,7 +144,7 @@
         </div>
     </div>
 </section>
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced">
         <h2>&nbsp;</h2>
         <h2 class="bg-warning text-center pt8 pb8">Account Chart Hierarchy</h2>
@@ -154,7 +154,7 @@
     </div>
 </section>
 
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced">
         <h2>&nbsp;</h2>
         <h2 class="bg-warning text-center pt8 pb8">User Alliance Distribution Multi level</h2>
@@ -164,7 +164,7 @@
     </div>
 </section>
 
-<section class="oe_container">
+<section class="container oe_container">
     <div class="oe_row oe_spaced">
         <h4 class="oe_slogan">Easy to setup just use widget='web_chart_hierarchy'. like this</h4>
         <div class="oe_demo oe_screenshot">