diff --git a/src/assets/css/main.css b/src/assets/css/main.css
index 70ae0bd..950f56a 100644
--- a/src/assets/css/main.css
+++ b/src/assets/css/main.css
@@ -81,11 +81,20 @@ input[type="number"] {
 }
 
 input[type="button"] {
-  min-width: 36px;
+  min-width: 40px;
   min-height: 40px;
   margin: 0 5px;
-  padding: 5px;
   font-weight: bold;
+  line-height: 1.5em;
+  border-radius: 0;
+  outline: none;
+  border: none;
+  font-size: 1.1em;
+  background: var(--light2);
+}
+
+input[type="button"]:hover {
+  background: var(--light3);
 }
 
 .form-field {