diff --git a/css/main.css b/css/main.css
index e20bb7f..9c977a2 100755
--- a/css/main.css
+++ b/css/main.css
@@ -36,6 +36,7 @@ input[type=button] {
    border-radius: 0.25em;
    margin-left: 0;
    margin-top: 0;
+   height: 2.5em;
 }
 .bc_red {
    background-color: red;