tbody tr{
  height: 3rem;
  background: #d9d9d9;
  cursor: pointer;
}
tbody tr:nth-child(old){
  background: #d9d9d9;
}
tbody tr:nth-child(even){
  background: #fff;
}
tbody td{
  padding-left: 2rem;
}

tr td:last-child{
  padding-right: 2rem;
}

.mainCon{
  height: calc(100vh - 5rem);
}
.triangle{
  position: relative;
  padding-left: 1.5rem;
}
.triangle::before {
  content: '';
  display: block;
  position: absolute;
  top: 1.3rem;
  left: 0;
  width: 0;
  height: 0;
  border-top: 7px solid transparent; /* 上边界为空 */
  border-bottom: 7px solid transparent; /* 下边界为空 */
  border-left: 14px solid black; /* 左边界为黑色线条 */
}
.yearActive,.addrActive{
  background: #fff;
  border-radius: 8px;
}
.options ul li:hover{
  cursor: pointer;
  background: #fff;
  border-radius: 8px;
}

.active{
  background: #fff;
  border-radius: 8px;
}

red{
  color: red;
}