styles.css

/* -------------------------------------
 * vertical timeline
 * ------------------------------------- */

.vertical-timeline ul {
  list-style: none;
  margin: 0 0 0 90px;
  padding-left: 30px;
  border-left: 4px solid lightgrey;
}
.vertical-timeline li{
  position: relative;
  margin-bottom: 20px;
}

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

.vertical-timeline .date {
  left: -120px;
  position: absolute;
  top: calc(50% - 20px);
}

.vertical-timeline .circle {
  top: calc(50% - 8px);
  left: -40px;
  width: 12px;
  height: 12px;
  background: white;
  border: 2px solid #ab0d25;
  border-radius: 50%;
  display: block;
  position: absolute;
}

.vertical-timeline .content {
  border-color: #ab0d25;
  border-width: 2px;
  border-style: solid;
  border-radius: 0.5em;
}

.vertical-timeline .inactive .content{
   border-color: transparent;
}

.vertical-timeline .inactive .content h4:hover{
  color: #ab0d25;
  cursor: pointer;
}

.vertical-timeline .inactive .comments{
  display: none;
}

.vertical-timeline .active .circle {
  background: #ab0d25;
}

.vertical-timeline .active .content {
  padding-left: 10px;
  transform: translateX(-5px);
  transition:0.3s;
}

.vertical-timeline .content:before, .content:after {
  content: "";
  width: 0;
  height: 0;
  border: solid transparent;
  position: absolute;
  right: 100%;
}
.vertical-timeline .content:before {
  border-right-color: inherit;
  border-width: 10px;
  top: 50%;
  margin-top: -11px;
}

.well {background-color: #f5f5f5; border: 1px solid #e3e3e3; border-radius: 4px; box-shadow: 0 1px 1px rgba(0, 0, 0, 0.05) inset; margin-bottom: 20px; min-height: 20px; padding: 19px;}