使用 <figure> 展示一段代码 - 在线编辑器

          <figure>
  <figcaption>通过 navigator 获取浏览器详情</figcaption>
  <pre>
function NavigatorExample() {
  var txt;
  txt = "Browser CodeName: " + navigator.appCodeName;
  txt+= "Browser Name: " + navigator.appName;
  txt+= "Browser Version: " + navigator.appVersion ;
  txt+= "Cookies Enabled: " + navigator.cookieEnabled;
  txt+= "Platform: " + navigator.platform;
  txt+= "User-agent header: " + navigator.userAgent;
}            
  </pre>
</figure>

        