#body>* {
  transition: 3s
}

form {
  padding: 30px 50px;
}

form th, form td {
  padding: 15px 10px;
}

th:nth-child(n+2), td:nth-child(n+2) {
  text-align: center;
}

input {
  padding: 5px 10px;
  text-align: center;
  accent-color: red;
}

form>button {
  margin: 30px auto;
  display: block;
}

form>button>label, main>header>button>label {
  display: block;
  padding: 10px 30px;
}

main {
  background: #eee;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

main>header {
  padding: 30px;
  display: flex;
  justify-content: space-between;
}

output {
  font-family: Quartz, monospace;
  font-size: 26px;
  padding: 6px 12px;
  color: red;
  background-color: #000;
}