:root {
    --blue: #2196F3;
    --lightBlue: #E3F2FD;
    --black: #1A1A1A;
    --gray: #9E9E9E;
    --white: #ffffff;
}
*, *::before, *::after {
    box-sizing: border-box;
}
html {
    min-height: 100%;
    display: flex;
    flex-direction: column;
}
body {
    padding: 0px;
    margin: 0px;
    flex-grow: 1;
}
.center {
    display: flex;
    align-items: center;
    justify-content: center;
}
.containerMain {
    background-color: var(--lightBlue);
}
.form {
    width: 384px;
    height: auto;
    padding: 24px;
    background-color: var(--white);
    border-radius: 12px;
}
.image {
    width: 100%;
    height: 200px;
    background-color: var(--blue);d
    border-radius: 8px;
}
.headline {
    font: bold 20px/120% Arial;
    text-align: center;
    color: var(--black);
    padding: 0px;
    margin: 24px 0px 12px 0px;
}
.paragraph {
    font: normal 14px/140% Arial;
    text-align: center;
    color: var(--gray);
    padding: 0px;
    margin: 0px;
}

@media screen and (max-width: 560px) {
    .containerMain {background-color: var(--white);}
    .form {width: inherit; height: auto; padding: 16px;}
}