diff --git a/style.css b/style.css
index f819edd..1a2d474 100644
--- a/style.css
+++ b/style.css
@@ -93,6 +93,7 @@ button {
   border: none;
   background: var(--surface);
   box-shadow: var(--border-raised-outer), var(--border-raised-inner);
+  border-radius: 0;
 
   min-width: 75px;
   min-height: 23px;