diff --git a/public/index.html b/public/index.html
index 6e8ad74..763e506 100644
--- a/public/index.html
+++ b/public/index.html
@@ -8,6 +8,16 @@
     <link rel="shortcut icon" href="favicon.ico" />
     <link href="https://fonts.googleapis.com/css?family=Roboto:300,400,700" rel="stylesheet" />
     <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro" rel="stylesheet" />
+    <style>
+      input[type='number']::-webkit-outer-spin-button,
+      input[type='number']::-webkit-inner-spin-button {
+        -webkit-appearance: none;
+        margin: 0;
+      }
+      input[type='number'] {
+        -moz-appearance: textfield;
+      }
+    </style>
 
     <title>Zcash Reference Wallet</title>
   </head>