.pace {
    position: fixed;
    width: 100%;
    height: 3px;
    z-index: 9999;
    top: 0;
    left: 0
}

.pace:before {
    content: '';
    display: block;
    width: 100%;
    height: 3px;
    background-color: rgba(255, 255, 255, .4);
    position: absolute
}

.pace-inactive {
    display: none
}

.pace-progress {
    height: 3px;
    z-index: 2;
    position: relative;
    transition: all .1s
}

.pace-activity {
    display: none
}