/* Styling */
.timeline {
  margin: 4em auto;
  position: relative;
  max-width: 46em;
}
.timeline:before {
  background-color: black;
  content: '';
  margin-left: -1px;
  position: absolute;
  top: 0;
  left: 2em;
  width: 2px;
  height: 100%;
}

.timeline-event {
  position: relative;
}
.timeline-event:hover .timeline-event-icon {
  -moz-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
  background-color: #0091f7;
}
.timeline-event:hover .timeline-event-thumbnail {
  -moz-box-shadow: inset 40em 0 0 0 #a83279;
  -webkit-box-shadow: inset 40em 0 0 0 #a83279;
  box-shadow: inset 40em 0 0 0 #0091f7;
}

.timeline-event-copy {
  padding: 2em;
  position: relative;
  top: -1.875em;
  left: 4em;
  width: 80%;
}
.timeline-event-copy h3 {
  font-size: 1.75em;
}
.timeline-event-copy h4 {
  font-size: 1.2em;
  margin-bottom: 1.2em;
}
.timeline-event-copy strong {
  font-weight: 700;
}
.timeline-event-copy p:not(.timeline-event-thumbnail) {
  padding-bottom: 1.2em;
}

.timeline-event-icon {
  -moz-transition: -moz-transform 0.2s ease-in;
  -o-transition: -o-transform 0.2s ease-in;
  -webkit-transition: -webkit-transform 0.2s ease-in;
  transition: transform 0.2s ease-in;
  -moz-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  -webkit-transform: rotate(45deg);
  transform: rotate(45deg);
  background-color: black;
  outline: 10px solid white;
  display: block;
  margin: 0.5em 0.5em 0.5em -0.5em;
  position: absolute;
  top: 0;
  left: 2em;
  width: 1em;
  height: 1em;
}

.timeline-event-thumbnail {
  -moz-transition: box-shadow 0.5s ease-in 0.1s;
  -o-transition: box-shadow 0.5s ease-in 0.1s;
  -webkit-transition: box-shadow 0.5s ease-in;
  -webkit-transition-delay: 0.1s;
  transition: box-shadow 0.5s ease-in 0.1s;
  color: white;
  font-size: 20px;
  background-color: black;
  -moz-box-shadow: inset 0 0 0 0em #ef795a;
  -webkit-box-shadow: inset 0 0 0 0em #ef795a;
  box-shadow: inset 0 0 0 0em #ffbf00;
  display: inline-block;
  margin-bottom: 1.2em;
  padding: 0.25em 1em 0.2em 1em;
}