JQuery UI Tabs - How to prevent styles being applied to content within tabs?

I have implemented the JQuery UI tabs and they work great, except for one problem...

All my content's styles / classes are being overriden by JQuery's, which I do not want to happen.For example, I have a text box:

<input type="text" id="profileFirstName" name="profileFirstName" class="textMedium" />

If I inspect the styles in Firebug, I see this (in this order):

.ui-widget :active {
outline:medium none;
}

.ui-widget input, .ui-widget select, .ui-widget textarea, .ui-widget button {
font-family:Verdana,Arial,sans-serif;
font-size:1em;
}

input.textMedium {
width:200px;
}

As you can see, JQuery has added the ui-widget styles before my own, thus overriding mine.

It is doing this everywhere I have implemented the tabs. How do I set it GLOBALLY so that its styles don't override mine?? I do not want any of the jquery styles affecting the tabbed content.

I suppose I could override their ui-widget styles and put nothing under the definitions? But I would like to know if there is a cleaner way so that their ui-widget styles don't get applied at all.

Thanks in advance!