html运行实例（css_position_top）-搜寻教程库

代码示例：（标识：css_position_top）

<!DOCTYPE html>
<html>
<head>
<style>
img {
  position: absolute;
  top: 0px;
}
</style>
</head>
<body>

<img src="/static/demo/images/smiley.gif" width="42" height="42">
<h1>This is a heading</h1>

</body>
</html>