body {
    padding: 0;
    margin: 5px;
    display: flex;
    height: 100vh;
    justify-content: center;
    align-items: center;
    font-family: 'Courier New', Courier, monospace;
    max-width: 100%;
}

.container {
    max-width: 100%;
    background-color: darkcyan;
    color: aliceblue;
    padding: 20px;
    border-radius: 10px;
    font-size: 1.5em;
}

h1 {
    font-size: 1em;
}

input {
    font-size: 0.7em;
    width: 100%;
    height: 30px;
}

.payment {
    font-weight: 600;
    font-size: 20px;
    color: red;
    background-color: aliceblue;
    padding: 20px;
    border-radius: 10px;
}