html {
    font-size: 14px;
    font-family: Calibri;
    position: relative;
    min-height: 100%;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
        font-family: Calibri;
    }
}

html,
body {
    margin: 0;
    padding: 0;
}