diff --git a/addons/website/views/themes.xml b/addons/website/views/themes.xml
index 2b7e6ab6728..965f52f5c79 100644
--- a/addons/website/views/themes.xml
+++ b/addons/website/views/themes.xml
@@ -10,7 +10,7 @@
         <t t-call="website.layout">
           <div class="container" t-if="editable">
     
-            <div class="alert alert-block alert-success mt32" t-if="theme_changed">
+            <div class="alert alert-success mt32" t-if="theme_changed">
                 <button type="button" class="close" data-dismiss="alert">&amp;times;</button>
                 <p>
                     <h4>Theme Changed!</h4>
diff --git a/addons/website_contract/views/website_contract.xml b/addons/website_contract/views/website_contract.xml
index f60ab0d7efb..cd009d6f70f 100644
--- a/addons/website_contract/views/website_contract.xml
+++ b/addons/website_contract/views/website_contract.xml
@@ -30,8 +30,8 @@
                 <h1 class="col-md-12 text-center">Trusted by millions worldwide</h1>
                 <h2 class="col-md-12 text-center">Our public references</h2>
                 <div class="col-md-12" id="ref_content">
-                   <nav class="navbar navbar-inverse" role="navigation">
-                       <div class="collapse navbar-collapse navbar-ex1-collapse">
+                   <div class="navbar navbar-inverse" role="navigation">
+                       <div class="navbar-collapse">
                            <t t-call="website.pager">
                               <t t-set="classname">pull-left</t>
                            </t>
@@ -39,7 +39,7 @@
                               <input type="text" name="search" class="search-query col-md-2 form-control" placeholder="Search" t-att-value="search or '' or ''" />
                            </form>
                        </div>
-                   </nav> 
+                   </div> 
                         <!-- <div class="navbar-inner">
                             
                         </div> -->
diff --git a/addons/website_sale/views/website_sale.xml b/addons/website_sale/views/website_sale.xml
index cc559f72cec..c7f7d639d49 100644
--- a/addons/website_sale/views/website_sale.xml
+++ b/addons/website_sale/views/website_sale.xml
@@ -97,8 +97,8 @@
         <t t-call="website_sale.layout">
             <t t-set="title">Product</t>
             <t t-set="shop_content">
-                <nav class='navbar navbar-inverse' role='navigation'>
-                    <div class="collapse navbar-collapse navbar-ex1-collapse">
+                <div class='navbar navbar-inverse' role='navigation'>
+                    <div class="navbar-collapse">
                         <t t-call="website.pager" >
                             <t t-set="classname">pull-left</t>
                         </t>
@@ -106,7 +106,7 @@
                             <input type="text" name="search" class="search-query col-md-2 form-control" placeholder="Search" t-att-value="search or '' or ''"/>
                         </form>
                     </div>
-                </nav>
+                </div>
                 <div class='row grid grid-align-top'>
                     <t t-foreach="products" t-as="product">
                     <div t-attf-class="col-md-2 mb16 thumbnail text-center #{not product.website_published and 'alert alert-warning' or ''}" style="width: 170px; margin-right: 4px; margin-left: 16px;">