span font-size: 100px;
<!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' xml:lang='en'>
<head>
<title>vertical-align</title>
<style type='text/css'>
p {
font: 12px sans-serif;
}
span.line {
border: 1px solid rgb(200, 200, 200);
background: rgb(244, 244, 244);
font-size: 100px;
}
span.line span {
vertical-align: 300%;
font-size: 20px;
background: white;
border: 1px solid black;
}
span#top {
vertical-align: top;
}
span#middle {
vertical-align: middle;
}
span#bottom {
vertical-align: bottom;
}
span#text-top {
vertical-align: text-top;
}
span#text-bottom {
vertical-align: text-bottom;
}
</style>
</head>
<body>
<p>
The vertical-align property is used in two scenarios: to
vertically align inline elements with respect to the line
box, and to vertically align the contents of table cells.
</p>
<p>
When vertically aligning inline elements within a line box,
the vertical-align property can be used with the keywords
top, middle, bottom, text-top, text-bottom.
</p>
<p>
<span class='line'>
Gg
<span id='top'>Top</span>
<span id='middle'>Middle</span>
<span id='bottom'>Bottom</span>
<span id='text-top'>Text Top</span>
<span id='text-bottom'>Text Bottom</span>
</span>
</p>
</body>
</html>