index.html

<!DOCTYPE html>
<html>
  <head>
    <link rel="stylesheet" href="./styles.css" />
  </head>
  <body>
    <div>
      <h1>Test page</h1>
    </div>
    <div>
      <canvas id="canvas"></canvas>
    </div>
    <div>
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
        <use href="./icons.svg#drawingSettingAutosaveSaving" />
      </svg>
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
        <use href="./icons.svg#toolElliottWave" />
      </svg>
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
        <use href="./icons.svg#toolLine" />
      </svg>
      <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
        <use href="./icons.svg#drawingSettingPreserveDrawingsActive" />
      </svg>
    </div>
  </body>
  <script type="module" src="./app.js"></script>
</html>