diff --git a/core/modules/ckeditor/css/ckeditor.admin.css b/core/modules/ckeditor/css/ckeditor.admin.css
index 272e3ea..786e02a 100644
--- a/core/modules/ckeditor/css/ckeditor.admin.css
+++ b/core/modules/ckeditor/css/ckeditor.admin.css
@@ -156,8 +156,6 @@ ul.ckeditor-multiple-buttons li.ckeditor-button-separator a {
   height: 18px;
   width: 1px;
   display: block;
-  -webkit-box-shadow: 1px 0 1px rgba(255, 255, 255, .5);
-  -moz-box-shadow: 1px 0 1px rgba(255,255,255,.5);
   box-shadow: 1px 0 1px rgba(255, 255, 255, .5)
 }
 .ckeditor-button-arrow {
diff --git a/core/modules/simpletest/files/css_test_files/css_input_without_import.css b/core/modules/simpletest/files/css_test_files/css_input_without_import.css
index b8ebc1a..118dfa4 100644
--- a/core/modules/simpletest/files/css_test_files/css_input_without_import.css
+++ b/core/modules/simpletest/files/css_test_files/css_input_without_import.css
@@ -30,10 +30,7 @@ color: #494949;
 }
 
 some :pseudo .thing {
-  -webkit-border-radius: 3px;
   border-radius: 3px;
-  filter: progid:DXImageTransform.Microsoft.Shadow(color=#000000, direction='180', strength='10');
-  -ms-filter: "progid:DXImageTransform.Microsoft.Shadow(color=#000000, direction='180', strength='10')";
 }
 
 ::-moz-selection {
diff --git a/core/modules/simpletest/files/css_test_files/css_input_without_import.css.optimized.css b/core/modules/simpletest/files/css_test_files/css_input_without_import.css.optimized.css
index d609057..6296378 100644
--- a/core/modules/simpletest/files/css_test_files/css_input_without_import.css.optimized.css
+++ b/core/modules/simpletest/files/css_test_files/css_input_without_import.css.optimized.css
@@ -1,4 +1,4 @@
 body{margin:0;padding:0;background:#edf5fa;font:76%/170% Verdana,sans-serif;color:#494949;}.this .is .a .test{font:1em/100% Verdana,sans-serif;color:#494949;}.this
 .is
 .a
-.test{font:1em/100% Verdana,sans-serif;color:#494949;}some :pseudo .thing{-webkit-border-radius:3px;border-radius:3px;filter:progid:DXImageTransform.Microsoft.Shadow(color=#000000,direction='180',strength='10');-ms-filter:"progid:DXImageTransform.Microsoft.Shadow(color=#000000,direction='180',strength='10')";}::-moz-selection{background:#000;color:#fff;}::selection{background:#000;color:#fff;}@media print{*{background:#000 !important;color:#fff !important;}@page{margin:0.5cm;}}@media screen and (max-device-width:480px){background:#000;color:#fff;}textarea,select{font:1em/160% Verdana,sans-serif;color:#494949;}
+.test{font:1em/100% Verdana,sans-serif;color:#494949;}some :pseudo .thing{border-radius:3px;}::-moz-selection{background:#000;color:#fff;}::selection{background:#000;color:#fff;}@media print{*{background:#000 !important;color:#fff !important;}@page{margin:0.5cm;}}@media screen and (max-device-width:480px){background:#000;color:#fff;}textarea,select{font:1em/160% Verdana,sans-serif;color:#494949;}
diff --git a/core/modules/simpletest/files/css_test_files/css_input_without_import.css.unoptimized.css b/core/modules/simpletest/files/css_test_files/css_input_without_import.css.unoptimized.css
index b8ebc1a..118dfa4 100644
--- a/core/modules/simpletest/files/css_test_files/css_input_without_import.css.unoptimized.css
+++ b/core/modules/simpletest/files/css_test_files/css_input_without_import.css.unoptimized.css
@@ -30,10 +30,7 @@ color: #494949;
 }
 
 some :pseudo .thing {
-  -webkit-border-radius: 3px;
   border-radius: 3px;
-  filter: progid:DXImageTransform.Microsoft.Shadow(color=#000000, direction='180', strength='10');
-  -ms-filter: "progid:DXImageTransform.Microsoft.Shadow(color=#000000, direction='180', strength='10')";
 }
 
 ::-moz-selection {
diff --git a/core/modules/views_ui/css/views_ui.admin.theme-rtl.css b/core/modules/views_ui/css/views_ui.admin.theme-rtl.css
index 6548a17..a4a0b31 100644
--- a/core/modules/views_ui/css/views_ui.admin.theme-rtl.css
+++ b/core/modules/views_ui/css/views_ui.admin.theme-rtl.css
@@ -114,9 +114,6 @@
  */
 
 .views-displays .secondary .action-list  li:first-child {
-  -moz-border-radius: 7px 0 0 0;
-  -webkit-border-top-left-radius: 7px;
-  -webkit-border-top-right-radius: 0;
   border-radius: 7px 0 0 0;
 }
 
diff --git a/core/modules/views_ui/css/views_ui.admin.theme.css b/core/modules/views_ui/css/views_ui.admin.theme.css
index bce3fdc..e714b19 100644
--- a/core/modules/views_ui/css/views_ui.admin.theme.css
+++ b/core/modules/views_ui/css/views_ui.admin.theme.css
@@ -69,15 +69,11 @@
   background-repeat: no-repeat, repeat-y;
   border: 1px solid #ddd;
   border-radius: 4px;
-  -moz-box-shadow: 0 0 0 rgba(0,0,0,0.3333) inset;
-  -webkit-box-shadow: 0 0 0 rgba(0,0,0,0.3333) inset;
   box-shadow: 0 0 0 rgba(0,0,0,0.3333) inset;
 }
 
 .views-admin a.icon:hover {
   border-color: #d0d0d0;
-  -moz-box-shadow: 0 0 1px rgba(0,0,0,0.3333) inset;
-  -webkit-box-shadow: 0 0 1px rgba(0,0,0,0.3333) inset;
   box-shadow: 0 0 1px rgba(0,0,0,0.3333) inset;
 }
 
@@ -781,8 +777,6 @@ ul#views-display-menu-tabs li.add ul.action-list li{
   border-radius: 0 10px 12px 0;
   border-style: solid;
   border-width: 1px 1px 1px 0;
-  -moz-box-shadow: 0 -2px 0 rgba(0, 0, 0, 0.1);
-  -webkit-box-shadow: 0 -2px 0 rgba(0, 0, 0, 0.1);
   box-shadow: 0 -2px 0 rgba(0, 0, 0, 0.1);
   height: 22px;
   right: -28px;
diff --git a/core/themes/seven/style-rtl.css b/core/themes/seven/style-rtl.css
index 70770d1..66e1159 100644
--- a/core/themes/seven/style-rtl.css
+++ b/core/themes/seven/style-rtl.css
@@ -192,8 +192,6 @@ ol.task-list li.active {
 }
 
 .views-displays .secondary .action-list  li:first-child {
-  -moz-border-radius: 7px 0 0 0;
-  -webkit-border-radius: 7px 0 0 0;
   border-radius: 7px 0 0 0;
 }
 
@@ -206,14 +204,11 @@ ol.task-list li.active {
 
 /* Narrow screens */
 /*.overlay .layout-region-secondary {
-     -moz-box-shadow: inset -0.15em 0.3em .5em rgba(0, 0, 0, .1);
-  -webkit-box-shadow: inset -0.15em 0.3em .5em rgba(0, 0, 0, .1);
-          box-shadow: inset -0.15em 0.3em .5em rgba(0, 0, 0, .1);
+    box-shadow: inset -0.15em 0.3em .5em rgba(0, 0, 0, .1);
 }*/
 /* Wide screens */
 @media only screen and (min-width: 780px) {
   .overlay [id="edit-additional-settings"] {
-    -webkit-box-shadow: inset -3px 3px 5px rgba(0, 0, 0, .15);
-    box-shadow:         inset -3px 3px 5px rgba(0, 0, 0, .15);
+    box-shadow: inset -3px 3px 5px rgba(0, 0, 0, .15);
   }
 }
diff --git a/core/themes/seven/style.css b/core/themes/seven/style.css
index 052d0f1..86ac064 100644
--- a/core/themes/seven/style.css
+++ b/core/themes/seven/style.css
@@ -702,7 +702,6 @@ textarea.form-textarea:focus,
 select.form-select:focus {
   color: #000;
   border-color: rgba(0, 116, 189, 0.8);
-  -webkit-box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(220, 220, 220, 0.4);
   box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 8px rgba(220, 220, 220, 0.4);
   outline-color: rgba(0, 116, 189, 0.5);
 }
@@ -720,7 +719,6 @@ select.form-select:focus {
   background-image: linear-gradient(to bottom, #419ff1, #1076d5);
   border: 1px solid #0048c8;
   border-radius: .4em;
-  -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, .4);
   box-shadow: inset 0 1px 0 rgba(255, 255, 255, .4);
   color: #fff;
   font-size: 1em;
@@ -747,7 +745,6 @@ select.form-select:focus {
   background-image: -ms-linear-gradient(top, #0e69be, #2a93ef);
   background-image: linear-gradient(to bottom, #0e69be, #2a93ef);
   border: 1px solid #0048c8;
-  -webkit-box-shadow: inset 0 1px 2px rgba(0, 0, 0, .25);
   box-shadow: inset 0 1px 2px rgba(0, 0, 0, .25);
 }
 
@@ -1036,8 +1033,6 @@ h1#overlay-title {
   color: #fff;
   background-color: #5f605b;
   padding: 0 6px;
-  -moz-border-radius: 5px;
-  -webkit-border-radius: 5px;
   border-radius: 5px;
 }
 
@@ -1333,8 +1328,6 @@ details.fieldset-no-legend {
 }
 
 .views-displays .secondary .open > a {
-  -moz-border-radius: 7px 7px 0 0;
-  -webkit-border-radius: 7px 7px 0 0;
   border-radius: 7px 7px 0 0;
 }
 
@@ -1344,14 +1337,10 @@ details.fieldset-no-legend {
 }
 
 .views-displays .secondary .action-list  li:first-child {
-  -moz-border-radius: 0 7px 0 0;
-  -webkit-border-radius: 0 7px 0 0;
   border-radius: 0 7px 0 0;
 }
 
 .views-displays .secondary .action-list  li:last-child {
-  -moz-border-radius: 0 0 7px 7px;
-  -webkit-border-radius: 0 0 7px 7px;
   border-radius: 0 0 7px 7px;
 }
 
@@ -1425,8 +1414,6 @@ details.fieldset-no-legend {
 /* @group Query info table */
 
 .views-query-info table {
-  -moz-border-radius: 7px;
-  -webkit-border-radius: 7px;
   border-radius: 7px;
   -webkit-border-horizontal-spacing: 1px;
   -webkit-border-vertical-spacing: 1px;
@@ -1456,8 +1443,6 @@ details.fieldset-no-legend {
  */
 
 .views-ui-dialog .ui-dialog-titlebar-close {
-  -moz-box-shadow: none;
-  -webkit-box-shadow: none;
   box-shadow: none;
   border-color: #cccccc;
   right: -27px;
@@ -1486,8 +1471,7 @@ details.fieldset-no-legend {
   border-left: 1px solid #bfbfbf;
   border-right: 1px solid #bfbfbf;
   border-top: 0;
-  -webkit-box-shadow: inset 0 0 5px rgba(0, 0, 0, .15);
-  box-shadow:         inset 0 0 5px rgba(0, 0, 0, .15);
+  box-shadow: inset 0 0 5px rgba(0, 0, 0, .15);
   margin-top: 0;
   padding-top: 0;
 }