.timeline {
  position: relative;
  max-width: 660px;
  width: 100%;
  margin: 0 auto;
  margin-top: 20px;
  padding: 1em 0;
  list-style-type: none;
  line-height: 1.6em;
}

.timeline:before {
  position: absolute;
  left: 50%;
  top: 0;
  content: " ";
  display: block;
  width: 6px;
  height: 100%;
  margin-left: -3px;
  background: rgb(80, 80, 80);
  background: -moz-linear-gradient(
    top,
    rgba(80, 80, 80, 0) 0%,
    rgb(80, 80, 80) 8%,
    rgb(80, 80, 80) 92%,
    rgba(80, 80, 80, 0) 100%
  );
  background: -webkit-gradient(
    linear,
    left top,
    left bottom,
    color-stop(0%, rgba(30, 87, 153, 1)),
    color-stop(100%, rgba(125, 185, 232, 1))
  );
  background: -webkit-linear-gradient(
    top,
    rgba(80, 80, 80, 0) 0%,
    rgb(80, 80, 80) 8%,
    rgb(80, 80, 80) 92%,
    rgba(80, 80, 80, 0) 100%
  );
  background: -o-linear-gradient(
    top,
    rgba(80, 80, 80, 0) 0%,
    rgb(80, 80, 80) 8%,
    rgb(80, 80, 80) 92%,
    rgba(80, 80, 80, 0) 100%
  );
  background: -ms-linear-gradient(
    top,
    rgba(80, 80, 80, 0) 0%,
    rgb(80, 80, 80) 8%,
    rgb(80, 80, 80) 92%,
    rgba(80, 80, 80, 0) 100%
  );
  background: linear-gradient(
    to bottom,
    rgba(80, 80, 80, 0) 0%,
    rgb(80, 80, 80) 8%,
    rgb(80, 80, 80) 92%,
    rgba(80, 80, 80, 0) 100%
  );
  z-index: 5;
}

.timeline li {
  padding: 1em 0;
}

.timeline li:after {
  content: "";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}

.direction-l {
  position: relative;
  width: 47%;
  float: left;
  text-align: right;
}

.direction-r {
  position: relative;
  width: 47%;
  float: right;
}

.flag-wrapper {
  position: relative;
  display: inline-block;
  text-align: center;
}

.flag {
  position: relative;
  display: inline;
  padding: 6px 10px;
  border-radius: 5px;
  font-weight: 600;
  text-align: left;
  background: rgba(15, 32, 39, 0.8);
  color: #e0e0ff;
}

.direction-l .flag {
  -webkit-box-shadow: -1px 1px 1px rgba(0, 0, 0, 0.15),
    0 0 1px rgba(0, 0, 0, 0.15);
  -moz-box-shadow: -1px 1px 1px rgba(0, 0, 0, 0.15), 0 0 1px rgba(0, 0, 0, 0.15);
  box-shadow: -1px 1px 1px rgba(0, 0, 0, 0.15), 0 0 1px rgba(0, 0, 0, 0.15);
}

.direction-r .flag {
  -webkit-box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.15),
    0 0 1px rgba(0, 0, 0, 0.15);
  -moz-box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.15), 0 0 1px rgba(0, 0, 0, 0.15);
  box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.15), 0 0 1px rgba(0, 0, 0, 0.15);
}

.direction-l .flag:before,
.direction-r .flag:before {
  position: absolute;
  top: 50%;
  right: -40px;
  content: " ";
  display: block;
  width: 12px;
  height: 12px;
  margin-top: -10px;
  background: #fff;
  border-radius: 10px;
  border: 4px solid rgb(255, 80, 80);
  z-index: 10;
}

.direction-r .flag:before {
  left: -40px;
}

.direction-l .flag:after {
  content: "";
  position: absolute;
  left: 100%;
  top: 50%;
  height: 0;
  width: 0;
  margin-top: -8px;
  border: solid transparent;
  border-width: 8px;
  pointer-events: none;
  border-left-color: rgba(15, 32, 39, 0.8);
}

.direction-r .flag:after {
  content: "";
  position: absolute;
  right: 100%;
  top: 50%;
  height: 0;
  width: 0;
  margin-top: -8px;
  border: solid transparent;
  border-right-color: rgba(15, 32, 39, 0.8);
  border-width: 8px;
  pointer-events: none;
}

.time-wrapper {
  display: inline;
  line-height: 1em;
  font-size: 0.66666em;
  color: rgb(70, 252, 241);
  vertical-align: middle;
}

.direction-l .time-wrapper {
  float: left;
}

.direction-r .time-wrapper {
  float: right;
}

.time {
  display: inline-block;
  padding: 4px 6px;
  background: rgba(15, 32, 39, 0.8);
}

.desc {
  margin: 1em 0.75em 0 0;
  font-size: 0.77777em;
  font-style: italic;
  line-height: 1.5em;
}

.direction-r .desc {
  margin: 1em 0 0 0.75em;
}

/* Tablet and Mobile Styles */
@media screen and (max-width: 660px) {
  .timeline {
    width: 100%;
    padding: 4em 0 1em 0;
  }

  .timeline:before {
    left: 10px;
    margin-left: 0;
  }

  .timeline li {
    padding: 2em 0;
  }

  .direction-l,
  .direction-r {
    float: none;
    width: 100%;
    text-align: left;
    padding-left: 30px;
  }

  .flag-wrapper {
    text-align: left;
  }

  .flag {
    background: rgba(15, 32, 39, 0.8);
    color: #e0e0ff;
    z-index: 15;
    padding-left: 10px;
    display: inline-block;
  }

  .direction-l .flag:before,
  .direction-r .flag:before {
    position: absolute;
    top: 50%;
    left: -30px;
    content: " ";
    display: block;
    width: 12px;
    height: 12px;
    margin-top: -10px;
    background: #fff;
    border-radius: 10px;
    border: 4px solid rgb(255, 80, 80);
    z-index: 10;
  }

  .direction-l .flag:after,
  .direction-r .flag:after {
    content: "";
    position: absolute;
    left: -8px;
    top: 50%;
    height: 0;
    width: 0;
    margin-top: -8px;
    border: solid transparent;
    border-left-color: rgba(15, 32, 39, 0.8);
    border-width: 8px;
    pointer-events: none;
  }

  .time-wrapper {
    display: inline-block;
    position: relative;
    margin: 4px 10px 0 0;
    z-index: 14;
    vertical-align: top;
  }

  .direction-l .time-wrapper,
  .direction-r .time-wrapper {
    float: none;
  }

  .desc {
    position: relative;
    margin: 1em 0 0 0;
    padding: 1em;
    -webkit-box-shadow: 0 0 1px rgba(0, 0, 0, 0.2);
    -moz-box-shadow: 0 0 1px rgba(0, 0, 0, 0.2);
    box-shadow: 0 0 1px rgba(0, 0, 0, 0.2);
    z-index: 15;
  }

  .direction-l .desc,
  .direction-r .desc {
    position: relative;
    margin: 1em 1em 0 1em;
    padding: 1em;
    z-index: 15;
  }
}

/* Fix small and medium screens */
@media screen and (min-width: 401px) and (max-width: 660px) {
  .direction-l .desc,
  .direction-r .desc {
    margin: 1em 4em 0 4em;
  }
}

/* Small mobile optimization */
@media screen and (max-width: 400px) {
  .timeline {
    padding-top: 2em;
  }

  .direction-l,
  .direction-r {
    padding-left: 25px;
  }

  .direction-l .flag:before,
  .direction-r .flag:before {
    left: -25px;
  }

  .flag {
    padding: 4px 8px;
    font-size: 0.9em;
  }

  .time-wrapper {
    font-size: 0.6em;
  }

  .desc {
    font-size: 0.9em;
    padding: 0.8em;
  }
}