#leftul li a{padding-left:5px}
#leftul .lion{border:1px solid #AAA;border-radius:7px;background-Color:#E9ECEF}
.iframeclass{width:100%;max-width:900px;height:506px;max-height:506px}
.timeline {
  margin: 0 0 45px;
  padding: 0;
  position: relative;
}

.timeline::before {
  border-radius: 0.25rem;
  background-color: #dee2e6;
  bottom: 0;
  content: "";
  left: 31px;
  margin: 0;
  position: absolute;
  top: 0;
  width: 4px;
}

.timeline > div {
  margin-bottom: 15px;
  margin-right: 10px;
  position: relative;
}

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

.timeline > div > .timeline-item {
  box-shadow: 0 0 1px rgba(0, 0, 0, 0.125), 0 1px 3px rgba(0, 0, 0, 0.2);
  border-radius: 0.25rem;
  background-color: #fff;
  color: #495057;
  margin-left: 60px;
  margin-right: 15px;
  margin-top: 0;
  padding: 0;
  position: relative;
}

.timeline > div > .timeline-item > .time {
  color: #999;
  float: right;
  font-size: 12px;
  padding: 10px;
}

.timeline > div > .timeline-item > .timeline-header {
  border-bottom: 1px solid rgba(0, 0, 0, 0.125);
  color: #495057;
  font-size: 16px;
  line-height: 1.1;
  margin: 0;
  padding: 10px;
}

.timeline > div > .timeline-item > .timeline-header > a {
  font-weight: 600;
}

.timeline > div > .timeline-item > .timeline-body,
.timeline > div > .timeline-item > .timeline-footer {
  padding: 10px;
}

.timeline > div > .timeline-item > .timeline-body > img {
  margin: 10px;
}

.timeline > div > .timeline-item > .timeline-body > dl,
.timeline > div > .timeline-item > .timeline-body ol,
.timeline > div > .timeline-item > .timeline-body ul {
  margin: 0;
}

.timeline > div > .timeline-item > .timeline-footer > a {
  color: #fff;
}

.timeline > div > .fa,
.timeline > div > .fas,
.timeline > div > .far,
.timeline > div > .fab,
.timeline > div > .fal,
.timeline > div > .fad,
.timeline > div > .svg-inline--fa,
.timeline > div > .ion {
  background-color: #adb5bd;
  border-radius: 50%;
  font-size: 16px;
  height: 30px;
  left: 18px;
  line-height: 30px;
  position: absolute;
  text-align: center;
  top: 0;
  width: 30px;
}

.timeline > div > .svg-inline--fa {
  padding: 7px;
}

.timeline > .time-label > span {
  border-radius: 4px;
  background-color: #fff;
  display: inline-block;
  font-weight: 600;
  padding: 5px;
}