<!DOCTYPE html>
<html>
<head>
<style>
img.top {
vertical-align: top;
}
img.middle {
vertical-align: middle;
}
img.bottom {
vertical-align: bottom;
}
</style>
</head>
<body>
<p>An <img src="begtut_logo.gif" alt="begtut" width="270" height="50"> 具有默认对齐方式的图像。</p><br>
<p>An <img class="top" src="begtut_logo.gif" alt="begtut" width="270" height="50"> 顶部对齐的图像。</p><br>
<p>An <img class="middle" src="begtut_logo.gif" alt="begtut" width="270" height="50"> 中间对齐的图像。</p><br>
<p>An <img class="bottom" src="begtut_logo.gif" alt="begtut" width="270" height="50"> 底部对齐的图像。</p>
</body>
</html>