1 files changed, 62 insertions, 0 deletions
diff --git a/comm/mail/themes/shared/mail/unifiedToolbarTab.css b/comm/mail/themes/shared/mail/unifiedToolbarTab.css
new file mode 100644
index 0000000000..51004ed49e
--- /dev/null
+++ b/comm/mail/themes/shared/mail/unifiedToolbarTab.css
@@ -0,0 +1,62 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+button {
+  padding-inline: 9px;
+  padding-block: 10px 6px;
+  box-sizing: border-box;
+  border-radius: 4px 4px 0 0;
+  cursor: default;
+  user-select: none;
+  appearance: none;
+  background: none;
+  border: 2px solid transparent;
+  border-bottom: none;
+  display: flex;
+  align-content: center;
+  gap: 6px;
+  width: 100%;
+  font-size: inherit;
+  position: relative;
+}
+
+button[aria-selected="true"] {
+  background-color: var(--layout-background-1);
+  box-shadow: 0 2px 8px -5px var(--color-black);
+}
+
+button::before {
+  content: '';
+  height: 2px;
+  margin-top: 3px;
+  margin-inline: 3px;
+  border-radius: 3px;
+  position: absolute;
+  inset-inline: 2px;
+  top: 0;
+}
+
+button[aria-selected="true"]::before {
+  background-color: var(--primary);
+}
+
+button:not([aria-selected="true"]):hover {
+  background-color: color-mix(in srgb, var(--layout-background-1) 50%, transparent);
+}
+
+button:not([aria-selected="true"]):hover::before {
+  background-color: color-mix(in srgb, var(--layout-color-1) 15%, transparent);
+}
+
+button:focus-visible {
+  outline: 2px solid transparent;
+  border-color: var(--primary);
+}
+
+span {
+  flex-shrink: 1;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}