.my-cascader {
  display: inline-block;
}
.el-cascader-node__label {
  flex: 1;
  padding: 0 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.el-cascader-menu__list {
  position: relative;
  min-height: 100%;
  margin: 0;
  padding: 6px 0;
  list-style: none;
  box-sizing: border-box;
}
.el-cascader-menu {
  max-width: 400px;
  box-sizing: border-box;
  color: #606266;
  border-right: 1px solid #e4e7ed;
  float: left;
}