body {
    margin: 0;
    background-image: url(intro2.jpeg);
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    min-height: 100vh;
}


.header, .container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.intro {
    display: none;
}


p, label{
    font-size: 29px;
    font-weight: bold;
    font-family: 'Underdog', cursive;
    text-align: center;
}

span {
    font-size: 23px;
    font-weight: bold;
    font-family: 'Underdog', cursive;
    padding: 5px;
}

.span {
    display: flex;
    flex-direction: column;
    text-align: start;
}

.userName {
    width: 200px;
    padding: 10px;
    font-size: 20px;
    border-radius: 10px;
    font-family: 'Underdog', cursive;
    border: 3px solid rgba(0, 0, 0, 0.3);
    background-color: rgba(0, 0, 0, 0);
}

::placeholder {
    color: black;
    text-align: center;
}


.btn {
    padding: 20px;
    font-size: 23px;
    width:  200px;
    font-family: 'Underdog', cursive;
    border: none;
    border-radius: 10px;
    border: 3px solid rgba(0, 0, 0, 0.3);
    background-color: rgba(0, 0, 0, 0);
    text-transform: uppercase;
    font-weight: bold;
}

.submit {
    display: flex;
    justify-content: space-around;
}


.container-question1, .container-question2, .container-question3, .container-question4, 
.container-question5, .container-question6, .container-question7, 
.container-question8, .container-question9, .container-question10, .container-result, 
.container-finally, .container-display {
    display: none;
}


@media all and (max-width: 500px ) {
    p, label{
        font-size: 15px;
    }
    
    span {
        font-size: 15px;
        padding: 3px;
    }

    .btn {
        padding: 10px;
        font-size: 10px;
        width:  150px;
    }

    .userName {
        width: 150px;
        padding: 10px;
        font-size: 10px;
    }
}