:root {
    --main-bg-color: #CFCFCF;
    --main-font-family: "PTMono-Bold", monospace;
    --main-font-color: #1B5978;
}

body {
   background: var(--main-bg-color);
    display: flex;
    flex-direction: column;
    /*min-height: 90vh;*/
}
header {
    text-align: center;
    font-family: var(--main-font-family);
    font-size: 7rem;
    color: var(--main-font-color);
}

main {
    flex: 1;
    height: 200px;
}

footer {
    font-family: var(--main-font-family);
    font-size: 1rem;
    color: var(--main-font-color);
    text-align: center;
    position: fixed;
    bottom: 0;
    width: 100%;
}

.box {
    display: flex;
    flex-direction: column;

}

.box article {
    font-family: var(--main-font-family);
    font-size: 2rem;
    color: var(--main-font-color);

    margin: 20px;

    align-content: center;
    vertical-align: center;
    text-align: center;
}