.pace-running > :not(.pace) {
    opacity: 0.3;
}

.pace-done > :not(.pace) {
    opacity: 1;
    transition: opacity .5s ease;
}

.pace.pace-inactive {
    display: none;
}
.pace {
    -webkit-pointer-events: none;
    pointer-events: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
    -webkit-perspective: 12rem;
    -moz-perspective: 12rem;
    -ms-perspective: 12rem;
    -o-perspective: 12rem;
    perspective: 12rem;
    z-index: 2000;
    position: fixed;
    height: 6rem;
    width: 6rem;
    margin: auto;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

    .pace.pace-inactive .pace-progress {
        display: none;
    }

    .pace .pace-progress {
        position: fixed;
        z-index: 2000;
        display: block;
        position: absolute;
        left: 0;
        top: 0;
        height: 6rem;
        width: 6rem !important;
        line-height: 6rem;
        font-size: 2rem;
        border-radius: 50%;
        background: rgba(200, 200, 200, 0.8);
        color: #fff;
        font-family: "Helvetica Neue", sans-serif;
        font-weight: 100;
        text-align: center;
        -webkit-animation: pace-theme-center-circle-spin linear infinite 2s;
        -moz-animation: pace-theme-center-circle-spin linear infinite 2s;
        -ms-animation: pace-theme-center-circle-spin linear infinite 2s;
        -o-animation: pace-theme-center-circle-spin linear infinite 2s;
        animation: pace-theme-center-circle-spin linear infinite 2s;
        -webkit-transform-style: preserve-3d;
        -moz-transform-style: preserve-3d;
        -ms-transform-style: preserve-3d;
        -o-transform-style: preserve-3d;
        transform-style: preserve-3d;
    }

        .pace .pace-progress:after {
            content: attr(data-progress-text);
            display: block;
        }

@-webkit-keyframes pace-theme-center-circle-spin {
    from {
        -webkit-transform: rotateY(0deg)
    }

    to {
        -webkit-transform: rotateY(360deg)
    }
}

@-moz-keyframes pace-theme-center-circle-spin {
    from {
        -moz-transform: rotateY(0deg)
    }

    to {
        -moz-transform: rotateY(360deg)
    }
}

@-ms-keyframes pace-theme-center-circle-spin {
    from {
        -ms-transform: rotateY(0deg)
    }

    to {
        -ms-transform: rotateY(360deg)
    }
}

@-o-keyframes pace-theme-center-circle-spin {
    from {
        -o-transform: rotateY(0deg)
    }

    to {
        -o-transform: rotateY(360deg)
    }
}

@keyframes pace-theme-center-circle-spin {
    from {
        transform: rotateY(0deg)
    }

    to {
        transform: rotateY(360deg)
    }
}