diff --git a/koha-tmpl/intranet-tmpl/prog/en/includes/doc-head-close.inc b/koha-tmpl/intranet-tmpl/prog/en/includes/doc-head-close.inc
index c2d2f48773..99cbd60c26 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/includes/doc-head-close.inc
+++ b/koha-tmpl/intranet-tmpl/prog/en/includes/doc-head-close.inc
@@ -24,7 +24,7 @@
 [% IF ( login ) %]
     [% Asset.css("css/login.css") | $raw %]
 [% END %]
-[% IF ( IntranetUserCSS ) %]<style type="text/css">[% IntranetUserCSS | $raw %]</style>[% END %]
+[% IF ( IntranetUserCSS ) %]<style>[% IntranetUserCSS | $raw %]</style>[% END %]
 
 [% KohaPlugins.get_plugins_intranet_head | $raw %]
 
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basket.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basket.tt
index 291fa7f923..bc27cbf7e4 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basket.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basket.tt
@@ -24,7 +24,7 @@
 <title>Koha &rsaquo; Acquisitions &rsaquo; [% UNLESS ( basketno ) %]New [% END %]Basket [% basketname | html %] ([% basketno | html %]) for [% booksellername | html %]</title>
 [% Asset.css("css/datatables.css") | $raw %]
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css">
+<style>
     .sortmsg {font-size: 80%;}
 </style>
 </head>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basketgroup.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basketgroup.tt
index 3be27fcedb..798282ec14 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basketgroup.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/basketgroup.tt
@@ -17,7 +17,7 @@
 [% Asset.js("lib/yui/animation/animation-min.js") | $raw %]
 [% Asset.js("lib/yui/dragdrop/dragdrop-min.js") | $raw %]
 [% Asset.js("lib/yui/element/element-min.js") | $raw %]
-<style type="text/css">
+<style>
 /*margin and padding on body element
   can introduce errors in determining
   element position and are not recommended;
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/booksellers.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/booksellers.tt
index 881094f4a6..81fface786 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/booksellers.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/booksellers.tt
@@ -5,7 +5,7 @@
 [% INCLUDE 'doc-head-open.inc' %]
 <title>Koha &rsaquo; Search for vendor [% supplier | html %]</title>
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css">
+<style>
 #vendors td{
 	vertical-align: top;
 }
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/duplicate_orders.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/duplicate_orders.tt
index d15f259e2a..28ea6d7fad 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/duplicate_orders.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/duplicate_orders.tt
@@ -11,7 +11,7 @@ Basket [% basket.basketno | html %] &rsaquo; Duplicate existing orders
 </title>
 [% INCLUDE 'doc-head-close.inc' %]
 [% Asset.css("css/datatables.css") | $raw %]
-<style type="text/css">
+<style>
     .picked_to_duplicate > td { background-color: #bcdb89 !important; }
     span.hint { margin-left: 1em; }
 </style>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/edifactmsgs.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/edifactmsgs.tt
index 5700d68dbe..c78e29fb5f 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/edifactmsgs.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/acqui/edifactmsgs.tt
@@ -6,7 +6,7 @@
 <title>Koha &rsaquo; Acquisitions &rsaquo; EDIFACT messages</title>
 [% Asset.css("css/datatables.css") | $raw %]
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css">
+<style>
 #EDI_modal { width : 80%; } @media (max-width: 767px) { #EDI_modal { margin: 0; width : auto; } }
 </style>
 </head>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/branch_transfer_limits.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/branch_transfer_limits.tt
index 82d1ab8da6..5aa9404881 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/branch_transfer_limits.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/branch_transfer_limits.tt
@@ -6,7 +6,7 @@
 <title>Koha &rsaquo; Administration &rsaquo; Library checkin and transfer policy</title>
 [% INCLUDE 'doc-head-close.inc' %]
 [% Asset.css("css/datatables.css") | $raw %]
-<style type="text/css">td { text-align: center; } .sorted { min-width: 50%; }</style>
+<style>td { text-align: center; } .sorted { min-width: 50%; }</style>
 </head>
 
 <body id="admin_branch_transfer_limits" class="admin">
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/categories.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/categories.tt
index d50e40615c..d1b3dc880d 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/categories.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/categories.tt
@@ -11,7 +11,7 @@
 </title>
 [% INCLUDE 'doc-head-close.inc' %]
 [% Asset.css("css/datatables.css") | $raw %]
-<style type="text/css">#enrolmentmessage.hint { display : none; }</style>
+<style>#enrolmentmessage.hint { display : none; }</style>
 </head>
 
 <body id="admin_categorie" class="admin">
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/classsources.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/classsources.tt
index cdc1a5bc41..9f8a375324 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/admin/classsources.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/admin/classsources.tt
@@ -16,7 +16,7 @@
 
 </title>
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css">
+<style>
     #button_add,
     .split_regex,
     .split_callnumber
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/batch/print-notices.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/batch/print-notices.tt
index 7151a7708b..e72a3c91fb 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/batch/print-notices.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/batch/print-notices.tt
@@ -2,7 +2,7 @@
 [% USE raw %]
     <title>Print Notices for [% today | html %]</title>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-    <style type="text/css">
+    <style>
         <!-- 
         .message { page-break-after: always }
         pre { font-family: monospace }
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/imageviewer.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/imageviewer.tt
index ef18b46850..6693a5928d 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/imageviewer.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/imageviewer.tt
@@ -5,7 +5,7 @@
 <title>Koha &rsaquo; Catalog &rsaquo; Details for [% biblio.title | html %] [% FOREACH subtitl IN subtitle %] [% subtitl.subfield | html %][% END %]</title>
 [% INCLUDE 'doc-head-close.inc' %]
 [% IF ( LocalCoverImages == 1 ) %]
-<style type="text/css">
+<style>
 #largeCoverImg {
     border : 1px solid #CCCCCC;
     display : block;
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/moredetail.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/moredetail.tt
index dcf37b7357..2e10ef9f46 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/moredetail.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/catalogue/moredetail.tt
@@ -7,7 +7,7 @@
 [% INCLUDE 'doc-head-open.inc' %]
 <title>Koha &rsaquo; Catalog &rsaquo; Item details for [% title | html %] [% FOREACH subtitl IN subtitle %] [% subtitl.subfield | html %][% END %]</title>
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css">h3{padding-top: 1em; border-top: 2px solid #CCCCCC;}#exportLabelexportModal_{border-top: 0px;}</style>
+<style>h3{padding-top: 1em; border-top: 2px solid #CCCCCC;}#exportLabelexportModal_{border-top: 0px;}</style>
 </head>
 <body id="catalog_moredetail" class="catalog">
 [% USE KohaDates %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/merge.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/merge.tt
index 586a495c5c..3e6c884a9c 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/merge.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/merge.tt
@@ -6,7 +6,7 @@
 [% INCLUDE 'doc-head-open.inc' %]
 <title>Koha &rsaquo; Cataloging &rsaquo; Merging records</title>
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css">
+<style>
 div.record ul, div.record li { float:none; display:block; }
 div#result { margin-top: 1em; }
 /* We use this style "against" the li ui-tabs-nav style automatically applied */
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/value_builder/unimarc_field_210c_bis.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/value_builder/unimarc_field_210c_bis.tt
index c989fec235..6f14f6ec39 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/value_builder/unimarc_field_210c_bis.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/value_builder/unimarc_field_210c_bis.tt
@@ -2,7 +2,7 @@
 [% INCLUDE 'doc-head-open.inc' %]
 <title>Koha &rsaquo; UNIMARC field 210c builder</title>
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css">
+<style>
     #custom-doc { width:37.85em;*width:36.93em;min-width:492px; margin:auto; text-align:left; }
 </style>
 </head>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_auth_search.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_auth_search.tt
index 0251ba4649..62e09aa9de 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_auth_search.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_auth_search.tt
@@ -9,7 +9,7 @@
     [% END %]
 [% INCLUDE 'doc-head-close.inc' %]
 [% Asset.css("css/datatables.css") | $raw %]
-<style type="text/css">
+<style>
     #marcPreview { width : 90%; top: 5%; } .modal-body { max-height: 380px; } .modal-header { padding: 0 14px; } @media (max-width: 767px) { #marcPreview { margin: 0; width : auto; } }
 </style>
 
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
index 3e074c455a..512c16b9fb 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/cataloguing/z3950_search.tt
@@ -6,7 +6,7 @@
 <title>Koha &rsaquo; Z39.50/SRU search results</title>
 [% INCLUDE 'doc-head-close.inc' %]
 [% Asset.css("css/datatables.css") | $raw %]
-<style type="text/css">
+<style>
 #dataPreview { width : 90%; top: 5%; } .modal-body { max-height: 380px; } .modal-header { padding: 0 14px; } @media (max-width: 767px) { #dataPreview { margin: 0; width : auto; } }
 </style>
 </head>
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/article-requests.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/article-requests.tt
index 5ccfea70f7..8719e51dc8 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/article-requests.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/article-requests.tt
@@ -6,7 +6,7 @@
 [% INCLUDE 'doc-head-open.inc' %]
 <title>Koha &rsaquo; Circulation &rsaquo; Article requests</title>
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css"> p { margin-top: 0; } [id^="article-menu-"] { display: none; } [id^="article-menu-"]:before { content: "|"; }</style>
+<style> p { margin-top: 0; } [id^="article-menu-"] { display: none; } [id^="article-menu-"]:before { content: "|"; }</style>
 </head>
 
 [% BLOCK actions %]
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/view_holdsqueue.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/view_holdsqueue.tt
index 5c2b1dd8a4..bc45a9694b 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/circ/view_holdsqueue.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/circ/view_holdsqueue.tt
@@ -11,7 +11,7 @@
 [% INCLUDE 'doc-head-open.inc' %]
 <title>Koha &rsaquo; Circulation &rsaquo; Holds queue</title>
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css"> p { margin-top: 0; }</style>
+<style> p { margin-top: 0; }</style>
 [% Asset.css("css/datatables.css") | $raw %]
 </head>
 
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/clubs/templates-add-modify.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/clubs/templates-add-modify.tt
index 063c55a8ed..15ed36d6a5 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/clubs/templates-add-modify.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/clubs/templates-add-modify.tt
@@ -9,7 +9,7 @@
     [% END %]
 </title>
 [% INCLUDE 'doc-head-close.inc' %]
-<style type="text/css">
+<style>
     .club-field,
     .enrollment-field {
         border-top: 1px solid #DDD;
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/serials/serials-search.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/serials/serials-search.tt
index 4c9e69f1a8..7b281e3bc6 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/serials/serials-search.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/serials/serials-search.tt
@@ -10,7 +10,7 @@
 <title>Koha &rsaquo; Serials [% biblionumber | html %]</title>
 [% INCLUDE 'doc-head-close.inc' %]
 [% Asset.css("css/datatables.css") | $raw %]
-<style type="text/css">input.dt-filter { width : 100%; font-size : 85%; }</style>
+<style>input.dt-filter { width : 100%; font-size : 85%; }</style>
 </head>
 
 <body id="ser_serials-home" class="ser">
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/tools/batchMod-del.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/tools/batchMod-del.tt
index 64721ce04e..4ddaf405a5 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/tools/batchMod-del.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/tools/batchMod-del.tt
@@ -6,7 +6,7 @@
 [% INCLUDE 'doc-head-close.inc' %]
 [% Asset.css("css/datatables.css") | $raw %]
 <!--[if IE]>
-<style type="text/css">#selections { display: none; }</style>
+<style>#selections { display: none; }</style>
 <![endif]-->
 </head>
 <body id="tools_batchMod-del" class="tools">
diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/tools/batchMod-edit.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/tools/batchMod-edit.tt
index 049a92f34c..78ebc4fc94 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/tools/batchMod-edit.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/tools/batchMod-edit.tt
@@ -40,9 +40,9 @@ $(document).ready(function(){
 //]]>
 </script>
 <!--[if IE]>
-<style type="text/css">#selections { display: none; }</style>
+<style>#selections { display: none; }</style>
 <![endif]-->
-<style type="text/css">input[type=checkbox]{ margin : 0 .5em; }</style>
+<style>input[type=checkbox]{ margin : 0 .5em; }</style>
 [% Asset.css("css/addbiblio.css") | $raw %]
 
 [% INCLUDE 'select2.inc' %]
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-basket.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-basket.tt
index 1fea75f3f3..062a05b6de 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-basket.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-basket.tt
@@ -7,7 +7,7 @@
 [% INCLUDE 'doc-head-open.inc' %]
 <title>[% IF ( LibraryNameTitle ) %][% LibraryNameTitle | html %][% ELSE %]Koha online[% END %] catalog &rsaquo; Your cart</title>
 [% INCLUDE 'doc-head-close.inc' %]
-[% BLOCK cssinclude %]<style type="text/css">.item-status, .dt-buttons { display: inline; } @media print { body { height: 99%; } }</style>[% END %]
+[% BLOCK cssinclude %]<style>.item-status, .dt-buttons { display: inline; } @media print { body { height: 99%; } }</style>[% END %]
 </head>
 [% INCLUDE 'bodytag.inc' bodyid='basket' %]
     <div class="main">
diff --git a/koha-tmpl/opac-tmpl/bootstrap/en/modules/sci/sci-main.tt b/koha-tmpl/opac-tmpl/bootstrap/en/modules/sci/sci-main.tt
index d9fb7a5368..e8e5c2d8bb 100644
--- a/koha-tmpl/opac-tmpl/bootstrap/en/modules/sci/sci-main.tt
+++ b/koha-tmpl/opac-tmpl/bootstrap/en/modules/sci/sci-main.tt
@@ -34,8 +34,8 @@
 [% Asset.css("lib/jquery/jquery-ui.css") | $raw %]
 [% Asset.css("lib/font-awesome/css/font-awesome.min.css") | $raw %]
 [% Asset.css("css/sci.css") | $raw %]
-[% IF ( Koha.Preference('OPACUserCSS') ) %]<style type="text/css">[% Koha.Preference('OPACUserCSS') | $raw %]</style>[% END %]
-[% IF ( Koha.Preference('SelfCheckInUserCSS') ) %]<style type="text/css">[% Koha.Preference('SelfCheckInUserCSS') | $raw %]</style>[% END %]
+[% IF ( Koha.Preference('OPACUserCSS') ) %]<style>[% Koha.Preference('OPACUserCSS') | $raw %]</style>[% END %]
+[% IF ( Koha.Preference('SelfCheckInUserCSS') ) %]<style>[% Koha.Preference('SelfCheckInUserCSS') | $raw %]</style>[% END %]
 <!--[if lt IE 9]>
     <script src="[% interface | html %]/[% theme | html %]/lib/respond.min.js"></script>
 <![endif]-->