.double-bounce1, .double-bounce2 {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    opacity: 0.6;
    position: absolute;
    top: 0;
    left: 0;
    -webkit-animation: bounceSpinner 2.0s infinite ease-in-out;
    animation: bounceSpinner 2.0s infinite ease-in-out
}

.double-bounce2 {
    -webkit-animation-delay: -1.0s;
    animation-delay: -1.0s
}

@-webkit-keyframes bounceSpinner {
    0%, 100% {
        -webkit-transform: scale(0)
    }

    50% {
        -webkit-transform: scale(1)
    }
}

@keyframes bounceSpinner {
    0%, 100% {
        transform: scale(0);
        -webkit-transform: scale(0)
    }

    50% {
        transform: scale(1);
        -webkit-transform: scale(1)
    }
}