diff --git a/Libraries/CMSIS/Documentation/SVD/html/tabs.css b/Libraries/CMSIS/Documentation/SVD/html/tabs.css
new file mode 100644
--- /dev/null
+++ b/Libraries/CMSIS/Documentation/SVD/html/tabs.css
@@ -0,0 +1,71 @@
+.tabs, .tabs1, .tabs2, .tabs3 {
+    background-image: url('tab_b.png');
+    width: 100%;
+    z-index: 101;
+    font-size: 10px;
+}
+
+.tabs1 {
+    background-image: url('tab_topnav.png');
+    font-size: 12px;
+}
+
+.tabs2 {
+    font-size: 10px;
+}
+.tabs3 {
+    font-size: 9px;
+}
+
+.tablist {
+    margin: 0;
+    padding: 0;
+    display: table;
+    line-height: 24px;
+}
+
+.tablist li {
+    float: left;
+    display: table-cell;
+    background-image: url('tab_b.png');
+    list-style: none;
+}
+
+.tabs1 .tablist li {
+    float: left;
+    display: table-cell;
+    background-image: url('tab_topnav.png');
+    list-style: none;
+}
+
+.tablist a {
+    display: block;
+    padding: 0 20px;
+    font-weight: bold;
+    background-image:url('tab_s.png');
+    background-repeat:no-repeat;
+    background-position:right;
+    color: #283A5D;
+    text-shadow: 0px 1px 1px rgba(255, 255, 255, 0.9);
+    text-decoration: none;
+    outline: none;
+}
+
+.tabs3 .tablist a {
+    padding: 0 10px;
+}
+
+.tablist a:hover {
+    background-image: url('tab_h.png');
+    background-repeat:repeat-x;
+    color: #fff;
+    text-shadow: 0px 1px 1px rgba(0, 0, 0, 1.0);
+    text-decoration: none;
+}
+
+.tablist li.current a {
+    background-image: url('tab_a.png');
+    background-repeat:repeat-x;
+    color: #fff;
+    text-shadow: 0px 1px 1px rgba(0, 0, 0, 1.0);
+}