html {
    position: relative;
    min-height: 100%;
}
body {
    margin-bottom: 72px; /* Margin bottom by footer height */
    background-color: #7fcce0;
}
.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    height: 72px; /* Set the fixed height of the footer here */
    line-height: 72px; /* Vertically center the text there */
    background-color: transparent;
}

.btn-xlg {
    padding: .5rem 1rem;
    font-size: 2.25rem;
    line-height: 1.5;
    border-radius: .3rem;
}

.qcm {
    font-size: 200%;
    line-height: 0.5;
}