diff --git a/addons/web/static/src/css/base.css b/addons/web/static/src/css/base.css
index 0281ec3750f..05a29d99508 100644
--- a/addons/web/static/src/css/base.css
+++ b/addons/web/static/src/css/base.css
@@ -1703,3 +1703,99 @@ ul.oe-arrow-list li.oe-arrow-list-selected .oe-arrow-list-after {
 .openerp .oe_view_editor_tree_grid a {
     display: block;
 }
+
+/***********/
+/* Buttons */
+/***********/
+
+a.button:link, a.button:visited, button, input[type='submit'] {
+  display: inline-block;
+  border: 1px solid #ababab;
+  color: #404040;
+  font-weight: 550;
+  font-size: 12px;
+  padding: 3px 10px;
+  min-width: 50px;
+  text-align: center;
+  background: #d8d8d8, none;
+  -o-background-size: 100% 100%;
+  -moz-background-size: 100% 100%;
+  -webkit-background-size: auto auto !important;
+  background-size: 100% 100%;
+  background: none, -webkit-gradient(linear, left top, left bottom, from(#efefef), to(#d8d8d8));
+  background: none, -webkit-linear-gradient(#efefef, #d8d8d8);
+  background: none, -moz-linear-gradient(#efefef, #d8d8d8);
+  background: none, -o-linear-gradient(top, #efefef, #d8d8d8);
+  background: none, -khtml-gradient(linear, left top, left bottom, from(#efefef), to(#d8d8d8));
+  -moz-border-radius: 3px;
+  -webkit-border-radius: 3px;
+  -o-border-radius: 3px;
+  -ms-border-radius: 3px;
+  border-radius: 3px;
+  -moz-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1), 0 1px 1px rgba(255, 255, 255, 0.8) inset;
+  -webkit-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1), 0 1px 1px rgba(255, 255, 255, 0.8) inset;
+  -o-box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1), 0 1px 1px rgba(255, 255, 255, 0.8) inset;
+  -box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1), 0 1px 1px rgba(255, 255, 255, 0.8) inset;
+  text-shadow: 0 1px 1px rgba(255, 255, 255, 0.5);
+  -webkit-font-smoothing: antialiased;
+  outline: none;
+}
+
+a.button:hover, button:hover, input[type='submit']:hover {
+  background: #e3e3e3, none;
+  -o-background-size: 100% 100%;
+  -moz-background-size: 100% 100%;
+  -webkit-background-size: auto auto !important;
+  background-size: 100% 100%;
+  background: none, -webkit-gradient(linear, left top, left bottom, from(#f6f6f6), to(#e3e3e3));
+  background: none, -webkit-linear-gradient(#f6f6f6, #e3e3e3);
+  background: none, -moz-linear-gradient(#f6f6f6, #e3e3e3);
+  background: none, -o-linear-gradient(top, #f6f6f6, #e3e3e3);
+  background: none, -khtml-gradient(linear, left top, left bottom, from(#f6f6f6), to(#e3e3e3));
+  cursor: pointer;
+}
+
+a.button:focus, button:focus, input[type='submit']:focus {
+  border: 1px solid #80bfff;
+  background: #e3e3e3, none;
+  -o-background-size: 100% 100%;
+  -moz-background-size: 100% 100%;
+  -webkit-background-size: auto auto !important;
+  background-size: 100% 100%;
+  background: none, -webkit-gradient(linear, left top, left bottom, from(#f6f6f6), to(#e3e3e3));
+  background: none, -webkit-linear-gradient(#f6f6f6, #e3e3e3);
+  background: none, -moz-linear-gradient(#f6f6f6, #e3e3e3);
+  background: none, -o-linear-gradient(top, #f6f6f6, #e3e3e3);
+  background: none, -khtml-gradient(linear, left top, left bottom, from(#f6f6f6), to(#e3e3e3));
+  -moz-box-shadow: 0 0 3px #80bfff, 0 1px 1px rgba(255, 255, 255, 0.8) inset;
+  -webkit-box-shadow: 0 0 3px #80bfff, 0 1px 1px rgba(255, 255, 255, 0.8) inset;
+  -o-box-shadow: 0 0 3px #80bfff, 0 1px 1px rgba(255, 255, 255, 0.8) inset;
+  -box-shadow: 0 0 3px #80bfff, 0 1px 1px rgba(255, 255, 255, 0.8) inset;
+}
+
+a.button:active, a.button.active, button:active, button.active, input[type='submit']:active, input[type='submit'].active {
+  background: #e3e3e3;
+  background: -moz-linear-gradient(top, #e3e3e3, #f6f6f6) #1b468f;
+  background: -webkit-gradient(linear, left top, left bottom, from(#e3e3e3), to(#f6f6f6)) #1b468f;
+  background: linear-gradient(top, #e3e3e3, #f6f6f6) #1b468f;
+  -moz-box-shadow: none, 0 0 0 transparent;
+  -webkit-box-shadow: none, 0 0 0 transparent;
+  -o-box-shadow: none, 0 0 0 transparent;
+  -box-shadow: none, 0 0 0 transparent;
+}
+
+a.button.disabled, button:disabled, input[type='submit']:disabled {
+  background: #efefef !important;
+  border: 1px solid #d1d1d1 !important;
+  font-weight: 550;
+  font-size: 12px;
+  padding: 3px 10px;
+  min-width: 50px;
+  -moz-box-shadow: none !important, 0 0 0 transparent;
+  -webkit-box-shadow: none !important, 0 0 0 transparent;
+  -o-box-shadow: none !important, 0 0 0 transparent;
+  -box-shadow: none !important, 0 0 0 transparent;
+  color: #aaaaaa !important;
+  cursor: default;
+  text-shadow: 0 1px 1px white !important;
+}