demo/mobile.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1"/>
  <title>mobile</title>
  <style>
    *{margin:0;padding:0}
  </style>
</head>
<body>
  <div>
    <div id="container" style="width:100vw;height:100vh;"></div>
    <button id="updateBtn">update</button>
    <button id="destroyBtn">destroy</button>
  </div>
  <div id="container1" style="width:100vw;height:100vh;"></div>

  <script src="../dist/dom-mark.js"></script>
  <script>
    var domMark = new DomMark('#container', {
      content: '好用的水印', // html,text
      fontSize: 'inherit',
      fontFamily: 'inherit',
      color: '#f00',
      opacity: .5,
      padding: 20,
      zIndex: 6000,
      minMargin: [40, 20],
      rotate: -15,
      observe: true
    })

    domMark.render()

    document.querySelector('#updateBtn').addEventListener('click', function () {
      domMark.update({
        content: '<span style="font-size:30px;color:#f00">升级</span>过的水印<br>' + new Date().toLocaleDateString(),
        color: '#f60'
      })
    })
    document.querySelector('#destroyBtn').addEventListener('click', function () {
      domMark.destroy()
    })

    var dm = new DomMark('#container1', {
      content: '<img width="90" src="data:image/png;base64,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">', // html,text
      padding: 20,
      minMargin: [40, 20],
      rotate: -15,
      observe: true
    })
    dm.render()
  </script>
</body>
</html>