.btn-full, audio, .slider.slider-horizontal {
    width: 100%;
}

.slider-track-low, .slider-track-high {
    box-shadow: inset 0 1px 3px 1px rgba(0,0,0,0.3);
}

.btn-half {
    width: 49%;
}

.playback {
    display: none;
}

.playback.next {
    display: none;
}

#lines {
    height: 24em;
    overflow: hidden;
}

.hidden-part span {
    visibility: hidden;
}

.slider-selection {
    background: #BABABA;
}