.timeline {
    display: flex;
    margin: 0 auto;
    flex-wrap: wrap;
    flex-direction: column;
    max-width: 700px;
    position: relative;
}

.timeline-container {
    width: 100%;
    position: relative;
    /*padding: 80px 0;*/
    background-attachment: fixed;
    background-size: cover;
}

    .timeline-container:before {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        content: "";
    }

.timeline__content-desc {
    margin: 0;
    padding-top: 20px;
    font-size: 15px;
    box-sizing: border-box;
    color: #575756;
    font-weight: normal;
    line-height: 25px;
}

.timeline:before {
    position: absolute;
    left: 50%;
    width: 2px;
    height: 100%;
    margin-left: -1px;
    content: "";
    background: #57575615;
}

@media only screen and (max-width: 767px) {
    .timeline:before {
        left: 40px;
    }
}

.timeline-item {
    padding: 40px 0;
    opacity: .3;
    filter: blur(2px);
    transition: .5s;
    box-sizing: border-box;
    width: calc(50% - 40px);
    display: flex;
    position: relative;
    transform: translateY(-80px);
}

    .timeline-item:before {
        content: attr(data-text);
        letter-spacing: 3px;
        width: 100%;
        position: absolute;
        color: rgba(2, 2, 2, 0.5);
        font-size: 13px;
        font-family: 'Roboto', sans-serif;
        border-left: 2px solid rgba(0, 0, 0, 0.5);
        top: 70%;
        margin-top: -5px;
        padding-left: 15px;
        opacity: 0;
        right: calc(-100% - 56px );
    }

    .timeline-item:nth-child(even) {
        align-self: flex-end;
    }

        .timeline-item:nth-child(even):before {
            right: auto;
            text-align: right;
            left: calc(-100% - 56px );
            padding-left: 0;
            border-left: none;
            border-right: 2px solid rgba(0, 0, 0, 0.5);
            padding-right: 15px;
        }

.timeline-item--active {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0px);
}

    .timeline-item--active:before {
        top: 50%;
        transition: .3s all .2s;
        opacity: 1;
    }

    .timeline-item--active .timeline__content-title {
        margin: -50px 0 20px 0;
    }

@media only screen and (max-width: 767px) {
    .timeline-item {
        align-self: baseline !important;
        width: 100%;
        padding: 0 30px 150px 80px;
    }

        .timeline-item:before {
            left: 10px !important;
            padding: 0 !important;
            top: 50px;
            text-align: center !important;
            width: 60px;
            border: none !important;
        }

        .timeline-item:last-child {
            padding-bottom: 40px;
        }
}

.timeline__img {
    max-width: 100%;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.4);
}