html, body {
    margin: 0;
    height: 100%;
}

body {
    display: grid;
    grid-template-rows: repeat(4, auto);
    justify-items: center;
    align-items: center;
}

a {
    text-decoration: none;
}

.container {
    display: grid;
    justify-items: center;
    align-items: center;
    height: 100%;
}

header {
    display: grid;
    grid-template-columns: auto;
    justify-items: center;
    align-items: center;
}

header img {
    max-width: 90%;
}

footer {
    position: absolute;
    margin: 0 auto;
    bottom: 0;
    justify-items: center;
    align-items: center;
}

.main {
    display: grid;
    grid-template-rows: auto;
    grid-template-columns: auto;
}

.v-card {
    border: 1px solid lightgreen;
    border-radius: 5px;
    margin: 10px auto;
    padding: 20px 50px;
}

.description {
    text-align: center;
    text-transform: uppercase;
    font-weight: bolder;
    font-size: 1.5em;
}

@media only screen and (min-width: 600px)  {
    .main {
        grid-template-columns: auto auto;
    }

    .v-card {
        margin: 1em;
    }

    .description {
        font-size: 2em;
    }
}