.my-target {
  color: red;
}

window.addEventListener('load', () => {
  console.log('hi')
})

  pre {
  code {
    color: red;
  }
  p {
    color: blue;
  }
}

<div data-wm-plugin="subnav"></div>

<style>
pre {
  code {
    color: red;
  }
  p {
    color: blue;
  }
}
</style>