@keyframes audio-spinner-animation {
    0% {
        transform: rotate(0deg)
    }

    50% {
        transform: rotate(180deg)
    }

    100% {
        transform: rotate(360deg)
    }
}

.audio-spinner-box div {
    position: absolute;
    animation: audio-spinner-animation 1s linear infinite;
    width: 120px;
    height: 120px;
    top: 40px;
    left: 40px;
    border-radius: 50%;
    box-shadow: 0 4px 0 0 #9f9e9e;
    transform-origin: 60px 62px;
}

.audio-spinner {
    width: 200px;
    height: 200px;
    display: inline-block;
    overflow: hidden;
    background: none;
}

.audio-spinner-box {
    width: 100%;
    height: 100%;
    position: relative;
    transform: translateZ(0) scale(1);
    backface-visibility: hidden;
    transform-origin: 0 0; /* see note above */
}

    .audio-spinner-box div {
        box-sizing: content-box;
    }