html
{
    height: 100%;
}

body
{
    min-width: 320px;
    height: 100%;
}

.wrapper
{
    overflow: hidden;
    min-height: 100%;
}

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

.page-layout > .wrapper
{
    flex: 1 0 auto;
    min-height: 0;
}

.page-layout > .footer
{
    flex-shrink: 0;
}