Fighter on Midway USS

Source HTML Code 

 <head>
    <title>示範濾鏡效果</title>
    <style>
      img {filter : alpha(opacity = 80, style = 3)} 
    </style>
  </head>
  <body>
    <h2>Fighter on Midway USS</h2>
    <img src="airplane.jpg">
  </body>