If you wanted a whole paragraph displayed in upper case, you can either use
the <style> in the <head> section or you can use in-line style. The <head>
section method would be to place the following between <head> and </head> at
the top of your page (in code view)
<style type="text/css">
p.uppercase {text-transform:uppercase}
</style>
Then you would assign the class to the paragraph you want:
<p class="uppercase">This is some text.</p>
Alternatively, you can use in-line style like so:
<p style="text-transform:uppercase">This is some text.</p>
See
http://www.w3schools.com/css/css_text.asp for more info.