./js/baidu.js"></script>
</head>
<body>
  <div class="box">
    <div class="content">
      <div class="operation">
        <button id="svg-big" title="运行" ></button>
        <button id="svg-small" title="停止"></button>
      </div>
      <div class="left show-things-div" onwheel="onSvgDivWheel()">
        <span class="page-title">
          <h1>实验项目：日志输出</h1>
          <p>鼠标放空白处，用滚轮缩放图片</p>
        </span>
        <div class="main-svg-div">
          <di