问题
I've created a <div> with width:10em and height:5em.
Now I would like to display an <img> (GIF image) in this <div> with the exact same size.
But apparently it doesn't "know" the em unit. It shows the picture in 10x5 pixels instead.
How can I display this <img> using the "em" unit?
回答1:
Use this code:
<html>
<body>
<p>This is 10em x 5em</p>
<div style="width:10em; height:5em;">
<img style="width:10em; height:5em;" src="logo.png" />
</div>
</body>
</html>
It works in Firefox 3.5, Internet Explorer 8 and Opera 10.0 Beta on Windows XP.
回答2:
You can style img with CSS:
img.MyImage {
width: 10em;
height: 5em;
}
<img class="MyImage" src="image.gif" />
来源：https://stackoverflow.com/questions/1259123/how-can-i-display-an-image-using-the-em-unit