body {
  background: #f2f2f2;
  font-family: Arial, sans-serif;
}

.login-box {
  width: 320px;
  margin: 120px auto;
  padding: 20px;
  background: #fff;
  border-radius: 4px;

}

.login-box h2 {
  text-align: center;
}

.login-box input {
  width: 100%;
  margin: 10px 0;
  padding: 8px;
box-sizing: border-box;
}

.login-box button {
  width: 100%;
  padding: 8px;
}