.btn
input[type="submit"] {
   font-size: 1.3em; padding: 5px 12px;
   font-family: Roboto, sans-serif;
   font-weight: 300;
   color: teal;
   border: 1px solid silver;
   background-image: linear-gradient(to top, gainsboro 0%, white 90%);
   border-radius: 20px;
}