diff --git a/css/brands.css b/css/brands.css
index 51e3d0c..cec018c 100644
--- a/css/brands.css
+++ b/css/brands.css
@@ -349,6 +349,7 @@
 .button-matrix {
 	--button-text:#000000;
 	--button-background:#ffffff;
+	--button-border:1px solid #000000;
 }
 
 /* Medium */