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

.page-content {
    flex: 1;
}

.page {
    display: -webkit-flex;
    display: flex;
    min-height: 100vh;
    -webkit-flex-direction: column;
    flex-direction: column;
}

.page-content {
    -webkit-flex: 1;
    flex: 1;
}

Add vendor prefixes to sticky footer CSS.
Add vendor prefixes to sticky footer CSS.
