Possible feature? target anchor rather than header id about markdown-it-anchor HOT 2 CLOSED

// added by HB, copied and modified renderPermalink
const renderTargetlink = (slug, opts, state, idx, text, tag) => {
  const space = () =>
    Object.assign(new state.Token('text', '', 0), { content: ' ' })

  const linkTokens = [
    Object.assign(new state.Token('link_open', 'a', 1), {
      attrs: [
        ['class', opts.targetlinkClass],
        ['id', slug],
        ['data-text',text],
        ['data-level',tag],
        ['aria-hidden', 'true']
      ]
    }),
    Object.assign(new state.Token('html_block', '', 0), { content: '' }),
    new state.Token('link_close', 'a', -1)
  ]

  // `push` or `unshift` according to position option.
  // Space is at the opposite side.
  linkTokens[position[(!opts.permalinkBefore).toString()]](space())
  state.tokens[idx + 1].children[position[opts.permalinkBefore]](...linkTokens)
}

let defaults = {
 ...
  useTargetlink:false,
  renderTargetlink,
  targetlinkClass: 'target-anchor hash-anchor',
  headerClassName:'content-header',
}

a.target-anchor {
    position:absolute;
    top:-64px;
}