diff --git a/tarteaucitron.js b/tarteaucitron.js
index 7c6d54c..fc0f349 100644
--- a/tarteaucitron.js
+++ b/tarteaucitron.js
@@ -278,7 +278,7 @@ var tarteaucitron = {
                 html += '   </button>';
                 html += '   <div id="tarteaucitronServices">';
                 html += '      <div class="tarteaucitronLine tarteaucitronMainLine" id="tarteaucitronMainLineOffset">';
-                html += '         <span class="tarteaucitronH1" role="heading" aria-level="h1" id="dialogTitle">'+ tarteaucitron.lang.title + '</span>';
+                html += '         <span class="tarteaucitronH1" role="heading" aria-level="1" id="dialogTitle">'+ tarteaucitron.lang.title + '</span>';
                 html += '         <div id="tarteaucitronInfo" class="tarteaucitronInfoBox">';
                 html += '         ' + tarteaucitron.lang.disclaimer;
                 if (tarteaucitron.parameters.privacyUrl !== "") {
@@ -289,7 +289,7 @@ var tarteaucitron = {
                 }
                 html += '         </div>';
                 html += '         <div class="tarteaucitronName">';
-                html += '            <span class="tarteaucitronH2" role="heading" aria-level="h2">' + tarteaucitron.lang.all + '</span>';
+                html += '            <span class="tarteaucitronH2" role="heading" aria-level="2">' + tarteaucitron.lang.all + '</span>';
                 html += '         </div>';
                 html += '         <div class="tarteaucitronAsk" id="tarteaucitronScrollbarAdjust">';
                 html += '            <button id="tarteaucitronAllAllowed" class="tarteaucitronAllow" onclick="tarteaucitron.userInterface.respondAll(true);">';
@@ -386,7 +386,7 @@ var tarteaucitron = {
                         html += '           ' + tarteaucitron.lang.close;
                         html += '       </button>';
                         html += '       <div class="tarteaucitronCookiesListMain" id="tarteaucitronCookiesTitle">';
-                        html += '            <span class="tarteaucitronH2" role="heading" aria-level="h2" id="tarteaucitronCookiesNumberBis">0 cookie</span>';
+                        html += '            <span class="tarteaucitronH2" role="heading" aria-level="2" id="tarteaucitronCookiesNumberBis">0 cookie</span>';
                         html += '       </div>';
                         html += '       <div id="tarteaucitronCookiesList"></div>';
                         html += '    </div>';
@@ -516,7 +516,7 @@ var tarteaucitron = {
 
             html += '<li id="' + service.key + 'Line" class="tarteaucitronLine">';
             html += '   <div class="tarteaucitronName">';
-            html += '       <span class="tarteaucitronH3" role="heading" aria-level="h3">' + service.name + '</span>';
+            html += '       <span class="tarteaucitronH3" role="heading" aria-level="3">' + service.name + '</span>';
             html += '       <span id="tacCL' + service.key + '" class="tarteaucitronListCookies"></span><br/>';
 
             if (tarteaucitron.parameters.moreInfoLink == true) {
@@ -648,7 +648,7 @@ var tarteaucitron = {
                     if (tarteaucitron.launch[key] !== true && status === true) {
 
                         tarteaucitron.pro('!' + key + '=engage');
-                        
+
                         tarteaucitron.launch[key] = true;
                         tarteaucitron.services[key].js();
                     }
@@ -1189,14 +1189,14 @@ var tarteaucitron = {
                     if (tarteaucitron.cookie.owner[name] !== undefined && tarteaucitron.cookie.owner[name].join(' // ') !== savedname) {
                         savedname = tarteaucitron.cookie.owner[name].join(' // ');
                         html += '<div class="tarteaucitronHidden">';
-                        html += '     <span class="tarteaucitronTitle tarteaucitronH3" role="heading" aria-level="h3">';
+                        html += '     <span class="tarteaucitronTitle tarteaucitronH3" role="heading" aria-level="3">';
                         html += '        ' + tarteaucitron.cookie.owner[name].join(' // ');
                         html += '    </span>';
                         html += '</div><ul class="cookie-list">';
                     } else if (tarteaucitron.cookie.owner[name] === undefined && host !== savedname) {
                         savedname = host;
                         html += '<div class="tarteaucitronHidden">';
-                        html += '     <span class="tarteaucitronTitle tarteaucitronH3" role="heading" aria-level="h3">';
+                        html += '     <span class="tarteaucitronTitle tarteaucitronH3" role="heading" aria-level="3">';
                         html += '        ' + host;
                         html += '    </span>';
                         html += '</div><ul class="cookie-list">';