使用百分比设置图像的高度 - 在线编辑器

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <style>
    html {
      height: 100%;
    }

    body {
      height: 100%;
    }

    img.normal {
      height: auto;
    }

    img.big {
      height: 50%;
    }

    img.small {
      height: 10%;
    }
  </style>
</head>

<body>
  <img class="normal" src="/examples/logocss.gif" width="95" height="84" /><br>
  <img class="big" src="/examples/logocss.gif" width="95" height="84" /><br>
  <img class="small" src="/examples/logocss.gif" width="95" height="84" />
</body>
</html>
​x
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <style>
    html {
      height: 100%;
    }
​
    body {
      height: 100%;
    }
​
    img.normal {
      height: auto;
    }
​
    img.big {
      height: 50%;
    }
​
    img.small {
      height: 10%;
    }
  </style>
</head>
​
<body>
  <img class="normal" src="/examples/logocss.gif" width="95" height="84" /><br>
  <img class="big" src="/examples/logocss.gif" width="95" height="84" /><br>
  <img class="small" src="/examples/logocss.gif" width="95" height="84" />
</body>
</html>