Need a simple way to set width and height of an empty block element
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<style type="text/css" media="all">
.prod
{
display: inline-block;
border: 1px solid grey;
width: 158;
height: 124;
cursor: pointer;
}
</style>
<script type="text/javascript">
function swap(x,y,z)
{
var node = document.getElementById(x);
node.src = node.src.indexOf(y)>=0 ? z : y;
node.style.border = node.src.indexOf(y)>=0 ? '' : '1px solid grey';
node.style.position = node.src.indexOf(y)>=0 ? 'static':'fixed';
node.style.top = node.src.indexOf(y)>=0 ? '' : '20%';
node.style.left = node.src.indexOf(y)>=0 ? '' : '20%';
}
</script>开发者_如何学Python;
</head>
<body>
<span class="prod">
<img id="im0001" src="thumbnail.gif" onclick="swap ('im0001','thumbnail.gif','fullsize.gif');" />
</span>
<br />
<br />
</body>
</html>
Missing CSS dimension units
You have to set dimension unit in your CSS for it to work. Your CSS only defines width as
width: 158;
that should be:
width: 158px;
That would do the trick for you.
JSFiddle demo.
Like mentioned in one of the comments, your height and width are incorrect. You need to change width: 158 to: width: 158px
Same goes with height
See: http://jsfiddle.net/jwKpN/
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