
html {
  font: 12px/16px "arial", sans-serif;
}

body {
  background-color: white;
  margin: 0;
  padding: 0;
}

input {
  font-family: "arial";
  text-align: center;
  font-size: 1.5rem;
  display: block;
  width: 90%;
  margin: 0 auto;
  background: white;
  color: #121212;
  border: 1px;
  padding: 1rem 0;
  border-radius: 3px;
    margin: 15px auto;
-webkit-filter: drop-shadow(3px 3px 3px #808080);
  filter: drop-shadow(3px 3px 3px #808080);
  overflow: hidden;
}

.result {
  display: block;
  margin: 0 auto;
  padding: 1rem;
  color: red;
  text-align: center;
  font-size: 44px;
}