.content {
  margin: 65px auto;
  max-width: 1200px;
  border-left: 1.5px dashed lightgray;
}

.year {
  margin-top: 15px;
}

.year span {
  padding-left: 25px;
  padding-right: 25px;
  border-bottom: 1.5px dashed lightgray;
}

.month {
  padding-left: 45px;
}

.pic-list {
  margin-left: 60px;
  display: flex;
  flex-wrap: wrap;
}

.item {
  margin: 2px 5px;
  padding: 2px;
}

.pic img {
  width: 120px;
  height: 155px;
  margin: 3px 2px;
  padding: 2px;
}