amis2/packages/amis-editor-core/scss/_targetname.scss

.ae-TargetName {
  padding: 12px;
  width: 15em;
  &-list {
    list-style: none;
    padding: 0;
    margin: 0;
    user-select: none;
    cursor: pointer;
  }
  &-node {
    > span {
      line-height: normal;
    }
    > a {
      color: $text-color;
      text-decoration: none;
    }
    &.is-active {
      > a {
        color: $primary;
      }
    }
    &.is-hover {
      > a {
        color: $primary;
      }
    }
  }
}