window.onload = () => {
  const msg = document.querySelector("#message");
  const lh =
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      .getComputedStyle(msg, null)
      .getPropertyValue("lineHeight");
  msg.innerHTML = "Manual page henri(1)";
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    e = e || window.event;
    switch (e.keyCode) {
      case 74:
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      case 75:
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      default: break;
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  }
};