diff --git a/ui/webui/resources/cr_elements/paper_button_style_css.html b/ui/webui/resources/cr_elements/paper_button_style_css.html
index 4df0b9a2b5f92d..1f586eb3b4cfaf 100644
--- a/ui/webui/resources/cr_elements/paper_button_style_css.html
+++ b/ui/webui/resources/cr_elements/paper_button_style_css.html
@@ -28,7 +28,6 @@
         border-radius: 4px;
         color: var(--text-or-bg-color);
         flex-shrink: 0;
-        font-size: 12px;
         font-weight: 500;
         height: 36px;
         margin: 0;