html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden; /* verhindert horizontales Scrollen */
}

*, *::before, *::after {
    box-sizing: inherit;
    margin: 0;
    padding: 0;
}

.container, .container-fluid {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
}

#main {
    display: flex;
    flex: 1;
    height: 100%;
    width: 100%;
    align-items: center;
    justify-content: center;
    /* background-color: blue; nur für Debug */
}

#main-col {
    height: 100%;
    width: 100%;
}

#main-card {
    height: 100%;
    width: 100%;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background-color: white;
}

/* body {
    background-color: red; für Debug
} */