Thuộc tính Height/Width với ảnh theo tỷ lệ %
<!DOCTYPE html>
<html>
<head>
<style>
html, body {
height: 100%;
}
img.one {
height: auto;
width: auto;
}
img.two {
height: 50%;
width: 50%;
}
</style>
</head>
<body>
<h2>Set the height and width in %</h2>
<p>Resize the browser window to see the effect.</p>
<p>Original image:</p>
<img class="one" src="images/ocean.jpg" width="300" height="300"><br>
<p>Sized image (in %):</p>
<img class="two" src="images/ocean.jpg" width="300" height="300">
</body>
</html>
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