设置图像的底部边缘，在元素的底边上面5px - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <style>
    img.ex1 {
      position: absolute;
      bottom: 0px;
    }

    img.ex2 {
      position: relative;
      bottom: -100px;
    }
  </style>
</head>

<body>
  <img class="ex1" src="/examples/logocss.gif" width="95" height="84">
  <h1>This is a heading</h1>
  <img class="ex2" src="/examples/logocss.gif" width="95" height="84">
</body>
</html>
        