<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>PointerLockControlsPlugin</title>
    <link rel="shortcut icon" type="image/x-icon" href="/favicon.ico" />
    <link rel="stylesheet" href="/css/common.css" />
  </head>

  <style></style>

  <body>
    <div id="button-position">
      <div id="button-group">
        <button id="lock">lock</b