1 files changed, 26 insertions, 0 deletions
diff --git a/toolkit/themes/linux/global/commonDialog.css b/toolkit/themes/linux/global/commonDialog.css
new file mode 100644
index 0000000000..d2aef07d71
--- /dev/null
+++ b/toolkit/themes/linux/global/commonDialog.css
@@ -0,0 +1,26 @@
+/* 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/. */
+
+#infoContainer {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+}
+
+/*
+ * Since we size the window to content, and the icon load is asynchronous, we
+ * make sure that we take the whole space we could possibly take, regardless of
+ * whether the icon is loaded.
+ */
+#iconContainer {
+  height: 55px; /* maximum icon height + some margin */
+  width: 58px; /* maximum icon width + some margin */
+}
+
+#infoIcon {
+  display: block;
+  max-width: 48px;
+  max-height: 48px;
+  margin: 3px auto 0;
+}