.footer-social li.odd::before {
    background-color: #D2D755;
    box-shadow: 0 0 0px 5px rgba(210,215,85,0.5), 0 0 0px 10px rgba(210,215,85,0.25);
}

.footer-social li.even::before {
    background-color: #00B0B9;
    box-shadow: 0 0 0px 5px rgba(0,176,185,0.5), 0 0 0px 10px rgba(0,176,185,0.25);
}