How to customize widgets?

I convert an HTML template to WordPress, Now it is running perfectly but their is one issue that i want to resolve. In my footer widgets area I add a text widget, the content of the widgets are…

<div class="footerLeft">
     	<h2> Monthly fitness tip</h2>
                <p class="redTextU redText"> Here are some helpful tips to keep in mind this month <br /><br /></p>
                  <a href="?page_id=60" title="Tips" style="text-decoration:none;"><h3>Tip#1</h3></a>
                <p> Setting realistic goals...</p>
</div>

Now what I want is how i get rid of this html in this widget, and just display the text with the specified style. Means how can I separate html and the text like ” <p> Setting realistic goals…</p>” So that I just write the text in the text widget and it display with same css style.