Website/_sass/timeline.scss

.timeline {
    position: relative;
    padding: 0;
    list-style: none;
}


.timeline:before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;               /* place it in the horizontal center */
  transform: translateX(-50%); /* shift back by half its own width */
  width: 0;                /* we don’t want width, just a border */
  border-left: 3px solid #ffffff3c;
}

.timeline>li {
    position: relative;
    margin-bottom: 50px;
    min-height: 50px;
    
}

.timeline > li.timeline-inverted {
    display: flex;
    align-items: center;   /* centers panel and image vertically */
    justify-content: flex-end; /* Left on X-axis */
}


.timeline>li:before,
.timeline>li:after {
    content: " ";
    display: table;
}

.timeline>li:after {
    clear: both;
}


.timeline>li .timeline-panel {
    float: right;
    position: relative;
    width: 100%;
    padding: 0 20px 0 20px;
    text-align: left;
    align-items: center;
}

.timeline>li .timeline-panel:before {
    right: auto;
    left: -15px;
    border-right-width: 15px;
    border-left-width: 0;
}

.timeline>li .timeline-panel:after {
    right: auto;
    left: -14px;
    border-right-width: 14px;
    border-left-width: 0;
}

.timeline>li .timeline-image {
    visibility: hidden;
    z-index: 100;
    position: absolute;
    border: 1px solid #000000;
    border-radius: 100%;
    text-align: center;
    background-color: #fff;
    display: flex;
    box-shadow: 0 0 0 2px #eeeeee,
}

.img-me {
    z-index: 100;
    width: 100px;
    height: 100px;
    border-radius: 20%;
    text-align: center;
    background-color: #fff;
    margin: auto auto;
    display: block;
}

.timeline>li .timeline-image h4 {
    margin-top: 12px;
    font-size: 10px;
    line-height: 14px;
}

.img-me h4 {
    margin-top: 12px;
    font-size: 10px;
    line-height: 14px;
}

.timeline>li.timeline-inverted>.timeline-panel {
    float: right;
    padding: 0 20px 0 20px;
    text-align: left;
}

.timeline>li.timeline-inverted>.timeline-panel:before {
    right: auto;
    left: -15px;
    border-right-width: 15px;
    border-left-width: 0;
}

.timeline>li.timeline-inverted>.timeline-panel:after {
    right: auto;
    left: -14px;
    border-right-width: 14px;
    border-left-width: 0;
}

.timeline>li:last-child {
    margin-bottom: 0;
}

.timeline .timeline-heading h4 {
    margin-top: 0;
    color: inherit;
}

.timeline .timeline-heading h4.subheading {
    text-transform: none;
}

.timeline .timeline-body>p,
.timeline .timeline-body>ul {
    margin-bottom: 0;
}

@media(min-width:768px) {
    .timeline:before {
        left: 10%;
        width: 4px;
    }

    .timeline>li {
        margin-bottom: 100px;
        min-height: 100px;
    }

    .timeline>li .timeline-panel {
        float: left;
        width: 60%;
        padding: 0 20px 20px 30px;
        text-align: right;
    }

    .timeline>li .timeline-image {
        visibility: visible;
        left: 9%;
        width: 100px;
        height: 100px;
        margin-left: -50px;
    }

    .img-me {
        //left: 50%;
        width: auto;
        height: auto;
        max-width: 86px;
        max-height: 86px;
    }

    .timeline>li .timeline-image h4 {
        margin-top: 16px;
        font-size: 13px;
        line-height: 18px;
    }

    .img-me h4 {
        margin-top: 16px;
        font-size: 13px;
        line-height: 18px;
    }

    .timeline>li.timeline-inverted>.timeline-panel {
        float: right;
        padding: 0 30px 20px 20px;
        text-align: left;
    }
}

@media(min-width:992px) {
    .timeline>li {
        min-height: 150px;
    }

    .timeline>li .timeline-panel {
        float: left;
        width: 60%;
        padding: 0 20px 20px;
    }

    .timeline>li .timeline-image {
        visibility: visible;
        width: 150px;
        height: 150px;
        margin-left: -75px;
    }

    .img-me {
        max-width:120px;
        max-height:120px;
        width: auto;
        height: auto;
    }

    .timeline>li .timeline-image h4 {
        margin-top: 30px;
        font-size: 18px;
        line-height: 26px;
    }

    .img-me h4 {
        margin-top: 30px;
        font-size: 18px;
        line-height: 26px;
    }

    .timeline>li.timeline-inverted>.timeline-panel {
        padding: 0 20px 20px;
    }
}