@Override
  public boolean isSelfClosingTagAllowed(@NotNull XmlTag tag) {
    XmlTag parent = tag;
    while (parent != null) {
      if ("svg".equals(parent.getName()) || "math".equals(parent.getName())) {
        return true;
      }
      parent = parent.getParentTag();
    }
    return super.isSelfClosingTagAllowed(tag);
  }
@Override
  public boolean isSelfClosingTagAllowed(@NotNull XmlTag tag)