body {
    background-color: whitesmoke;
    padding: 0 2rem;
    font-family: 'Work Sans', sans-serif;
    font-weight: 400;
    background-image: url('../images/qr-code1.webp');
    background-size: 100% 100%;
    background-repeat: no-repeat;
}

h1 {
    display:block;
    padding-bottom: 0.5rem;
    text-decoration: underline;
}

.container {
    background-color: whitesmoke;
    border-radius: 1rem;
    min-width: 350px;
    max-width: 500px;
    width: 50%;
    padding: 0 2rem;
    min-height: 700px;

    -webkit-transition: all 0.8s ease;
    transition: all 0.8s ease;
    position: absolute;
    top: 0;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    overflow: hidden;
    -webkit-box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15);
    box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15);
}


.container-front {
background-color: whitesmoke ;
border-radius: 1rem;
padding: 0 2rem;

-webkit-perspective: 150rem;
perspective: 150rem;
-moz-perspective: 150rem;
position: relative;
margin: 0 auto;
}

.container-front.flipped {
    -webkit-transform: rotateY(-180deg);
    transform: rotateY(-180deg);
}

.container-back {
    -webkit-transform: rotateY(180deg);
    transform: rotateY(180deg);
}

.container-back.flipped {
    -webkit-transform: rotateY(0);
    transform: rotateY(0);
}

button {
    cursor: pointer;
    transition: all 0.15s ease-in-out;
}

button:hover {
    transition: all 0.15s ease-in-out;
    transform: translateY(-0.2rem);
}

button:active {
    transition: all 0.15s ease-in-out;
}

button:disabled {
    outline: none;
    transition: none;
    transform: none;
    cursor: not-allowed;
}

div .cta {
    margin-left: 27%;
    margin-right: 7%;
}

main {
    display: flex;
    justify-content: center;
    -webkit-perspective: 150rem;
    perspective: 150rem;
    -moz-perspective: 150rem;
    position: relative;
    margin: 0 auto;
}
img {
    margin-bottom: 2rem;
    margin-top: 3rem;
    margin-left: 8vw;
    margin-right: auto;
}