.timeline {
    list-style: none;
    padding: 20px 0 20px;
    position: relative;
}

.timeline:before {
    top: 0;
    bottom: 0;
    position: absolute;
    content: " ";
    width: 1px;
    background-color: #d4d4d4;
    left: 50%;
    margin-left: 0px;
}

.timeline>li {
    margin-bottom: 20px;
    position: relative;
}

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

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

.timeline>li>.timeline-panel {
    width: 40%;
    float: left;
    position: relative;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    -ms-border-radius: 4px;
    border-radius: 7px;
}

.timeline>li>.timeline-panel:before {
    position: absolute;
    top: 60px;
    right: -15px;
    display: inline-block;
    border-top: 15px solid transparent;
    border-left: 15px solid #ccc;
    border-right: 0 solid #ccc;
    border-bottom: 15px solid transparent;
    content: " ";
}

.timeline>li>.timeline-panel:after {
    position: absolute;
    top: 61px;
    right: -14px;
    display: inline-block;
    border-top: 14px solid transparent;
    border-left: 14px solid #fff;
    border-right: 0 solid #fff;
    border-bottom: 14px solid transparent;
    content: " ";
}

.timeline>li>.timeline-badge {
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    width: 80px;
    height: 80px;
    line-height: 50px;
    font-size: 1.4em;
    text-align: center;
    position: absolute;
    top: 45px;
    left: 50%;
    margin-left: -40px;
    background-color: #ffffff;
    z-index: 100;
}

.timeline>li.timeline-inverted>.timeline-panel {
    float: right;
}

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

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

@media screen and (max-width: 480px) {
    .timeline>li>.timeline-badge {
        margin-left: -65px !important;
        top: 15px;
    }
    .timeline>li>.timeline-panel {
        width: 75% !important;
    }
    .timeline>li>.timeline-panel:before {
        top: 30px;
    }
    .timeline>li>.timeline-panel:after {
        top: 31px;
    }
    .timeline:before {
        margin-left: -64px;
    }
}

@media screen and (max-width: 768px) {
    .timeline>li>.timeline-panel>.timeline-image-card {
        max-width: 18rem !important;
    }
}

@media (max-width: 992px) {
    ul.timeline:before {
        left: 90px;
    }
    ul.timeline>li>.timeline-panel {
        width: calc(100% - 200px);
        width: -moz-calc(100% - 200px);
        width: -webkit-calc(100% - 200px);
    }
    ul.timeline>li>.timeline-badge {
        left: 60px;
        margin-left: 0;
    }
    ul.timeline>li>.timeline-panel {
        float: right;
    }
    ul.timeline>li>.timeline-panel:before {
        border-left-width: 0;
        border-right-width: 15px;
        left: -15px;
        right: auto;
    }
    ul.timeline>li>.timeline-panel:after {
        border-left-width: 0;
        border-right-width: 14px;
        left: -14px;
        right: auto;
    }
}