diff --git a/chrome/content/zotero-platform/win/tagselector.css b/chrome/content/zotero-platform/win/tagselector.css
index e69de29bb2..765493caca 100644
--- a/chrome/content/zotero-platform/win/tagselector.css
+++ b/chrome/content/zotero-platform/win/tagselector.css
@@ -0,0 +1,4 @@
+button {
+	font-family: Segoe UI, sans-serif;
+	font-size: 1em;
+}
\ No newline at end of file