body {
    margin: 0;
    padding: 0;
    background: #2c3e50;
    font-family: sans-serif;
}

.login-box {
    width: 280px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    color: white;
}

.login-box h2 {
    margin: 0 0 20px;
    padding: 0;
    text-align: center;
    font-size: 22px;
}

.login-box .user-box {
    position: relative;
}

.login-box .user-box input {
    width: 100%;
    padding: 10px 0;
    font-size: 16px;
    color: white;
    margin-bottom: 30px;
    border: none;
    border-bottom: 1px solid white;
    outline: none;
    background: transparent;
}

.login-box .user-box label {
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 0;
    font-size: 16px;
    color: white;
    pointer-events: none;
    transition: 0.5s;
}

.login-box .user-box input:focus ~ label,
.login-box .user-box input:valid ~ label {
    top: -20px;
    left: 0;
    color: #03a9f4;
    font-size: 12px;
}

.login-box button {
    background: transparent;
    border: none;
    outline: none;
    color: white;
    background: #03a9f4;
    padding: 10px 20px;
    cursor: pointer;
    border-radius: 5px;
}

.login-box button:hover {
    background: #1dc7f3;
}

#app {
    width: 450px;
    margin: auto;
    padding: 100px;
    border-radius: 5px;
    background-color: #lemonchiffon;
    text-align: center;
}
h1 {
    font-size: 30px;
    text-align: center;
}
.input {
    padding: 10px;
    width: 300px;
    text-align: center;
}

@media (max-width: 768px) {
  /* Gaya CSS untuk perangkat dengan lebar layar maksimum 768px */
}

@media (max-width: 480px) {
  /* Gaya CSS untuk perangkat dengan lebar layar maksimum 480px */
}