body {
  height: 100vh;
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

form {
  width: 300px;
  margin: 0 auto;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 5px;
  display: flex;
  flex-direction: column;
}

input {
  width: 100%;
  font-size: 15px;
  height: 35px;
}