#conference-timeline {
    position: relative;
    max-width: 920px;
    width: 100%;
    margin: 0 auto;
}

#conference-timeline .timeline-start,
#conference-timeline .timeline-end {
    display: table;
    font-family: "Roboto", sans-serif;
    font-size: 18px;
    font-weight: 900;
    text-transform: uppercase;
    background: #00b0bd;
    padding: 15px 23px;
    color: #fff;
    max-width: 5%;
    width: 100%;
    text-align: center;
    margin: 0 auto;
}

#conference-timeline .conference-center-line {
    position: absolute;
    width: 3px;
    height: 100%;
    top: 0;
    left: 50%;
    margin-left: -2px;
    background: #c4c8c8;
    z-index: -1;
}

#conference-timeline .conference-timeline-content {
    position: relative;
    padding-top: 67px;
}

.timeline-article {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    margin: 20px 0;
}

.timeline-article-middle {
    display: flex; 
    justify-content: center;
}

.timeline-article-middle .normView {
    /*display: block;*/
    display: flex;
    align-items: stretch;
    flex-direction: column;
    flex-grow: 1;
    border-left: 2px solid #dcdede;
    
}

.timeline-article-middle .specView {
    display: none;
}


.timeline-article .content-left-container,
.timeline-article .content-right-container,
.timeline-article .content-middle-container {
    max-width: 44%;
    width: 100%;
}

.timeline-article .timeline-author {
    display: block;
    font-weight: 400;
    font-size: 14px;
    line-height: 24px;
    color: #242424;
    text-align: right;
}

.timeline-article .content-left,
.timeline-article .content-right,
.timeline-article .content-middle {
    position: relative;
    width: auto;
    border: 2px solid #dcdede;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,.03);
    padding: 20px;
    display: flex;
    /*align-items: center;*/
    flex-flow: row;
}

.timeline-article p {
    margin: 0 0 0 20px;
    padding: 0;
    font-weight: 400;
    /*color: #242424;*/
    color: #525557;
    font-size: 16px;
    line-height: 24px;
    position: relative;
}

.timeline-article p span.article-number {
    position: absolute;
    font-weight: 300;
    font-size: 44px;
    top: 10px;
    left: -60px;
    color: #00b0bd;
}

.timeline-article .content-left-container {
    float: left;
}

.timeline-article .content-right-container {
    float: right;
}

.timeline-article .content-left:after, .timeline-article .content-left:before {
    left: 100%;
    top: 30px;
    border: solid transparent;
    content: "";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
}

.timeline-article .content-left:after {
    border-color: rgba(136, 183, 213, 0);
    border-left-color: #ffffff;
    border-width: 7px;
    margin-top: -7px;
}

.timeline-article .content-left:before {
    border-color: rgba(194, 225, 245, 0);
    /*border-left-color: #dddddd;*/
    border-left-color: #dcdede;
    border-width: 11px;
    margin-top: -11px;
}

.timeline-article .timelineImg {
    width: 140px; 
    text-align: center;
    padding-right: 20px;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
}

.timeline-article .timelineText {
    display: flex;
    align-items: stretch;
    justify-content: center;
    flex-direction: column;
    flex-grow: 1;
    border-left: 2px solid #dcdede;
}

.timeline-article .content-right:after, .timeline-article .content-right:before {
    right: 100%;
    top: 30px;
    border: solid transparent;
    content: "";
    height: 0;
    width: 0;
    position: absolute;
    pointer-events: none;
}

.timeline-article .content-right:not(.nonArrow):after {
    border-color: rgba(136, 183, 213, 0);
    border-right-color: #ffffff;
    border-width: 7px;
    margin-top: -7px;
}

.timeline-article .content-right:not(.nonArrow):before {
    border-color: rgba(194, 225, 245, 0);
    /*border-right-color: #dddddd;*/
    border-right-color: #dcdede;
    border-width: 11px;
    margin-top: -11px;
}

.timeline-article .meta-date {
    position: absolute;
    top: 0;
    left: 50%;
    width: 62px;
    height: 62px;
    margin-left: -31px;
    color: #525557;
    border-radius: 100%;
    background: #ffffff;
}

.timeline-article .meta-date .date,
.timeline-article .meta-date .year {
    display: block;
    text-align: center;
    font-family: OpenSans-Bold, sans-serif;
}

.timeline-article .meta-date .date {
    font-size: 30px;
    line-height: 40px;
}

.timeline-article .meta-date .year {
    font-size: 18px;
    line-height: 10px;
    margin-top: 23px;
}

/*------------------------*/

@media only screen and (max-width: 830px) {
    #conference-timeline .timeline-start,
    #conference-timeline .timeline-end {
        margin: 0;
    }
    
    #conference-timeline .conference-center-line {
        margin-left: 0;
        left: 50px;
    }
    
    .timeline-article-middle {
        justify-content: left;
    }
    
    .timeline-article .meta-date {
        margin-left: 0;
        left: 20px;
    }
    
    .timeline-article .content-middle-container {
        max-width: unset;
    }
    
    .timeline-article .content-left-container,
    .timeline-article .content-right-container {
        max-width: 100%;
        width: auto;
        float: none;
        margin-left: 110px;
        min-height: 53px;
    }
    
    .timeline-article .content-left-container {
        margin-bottom: 20px;
    }
    
    .timeline-article .content-left,
    .timeline-article .content-right {
        padding: 10px 25px;
        min-height: 65px;
    }
    
    .timeline-article .content-left:before,
    .timeline-article .content-left:after {
        right: 100%;
        left: unset;
    }
    
    .timeline-article .content-left:before {
        border-left-color: transparent;
        border-right-color: #dddddd;
    }
    
    .timeline-article .content-left:after {
        border-left-color: transparent;
        border-right-color: #ffffff;
    }
    
    .timeline-article-middle .normView {
        display: none;
    }
    
    .timeline-article-middle .specView {
        display: flex;
        align-items: stretch;
        flex-direction: column;
        flex-grow: 1;
        border-left: 2px solid #dcdede;
    }
    
    .timeline-article .timelineImg {
        padding: 0;
    }
    
    .timeline-article .timelineText {
        border: none;
        margin: 0;
    }
    
}


@media only screen and (max-width: 530px) {
    .timeline-article .content-left, .timeline-article .content-right {
        flex-direction: column;
    }
    
    .timeline-article .timelineImg {
        width: auto;
    }
    
    .timeline-article .content-middle .timelineImg {
        width: 120px;
    }
    
    .timeline-article p {
        margin: 10px 0 0 0;
        text-align: center;
    }
}


@media only screen and (max-width: 400px) {
    .timeline-article p span.article-number {
        display: none;
    }
}