diff --git a/src/styles/components/_button.less b/src/styles/components/_button.less
index 335d8dd..ec79708 100644
--- a/src/styles/components/_button.less
+++ b/src/styles/components/_button.less
@@ -41,6 +41,11 @@ a.button, button, input[type="submit"], input[type="reset"]
 		transform: scale(0.95);
 	}
 
+	&:disabled
+	{
+		opacity: 60%;
+	}
+
 	&.flat
 	{
 		box-shadow: 0 0 0 0 transparent;