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

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.footer {
    margin-top: auto;
    background-color: #f5f5f5;
    line-height: 60px;
}

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