style includes bullet points

There’s a CSS definition in your theme’s stylesheet that is overriding the list type for the tab elements, line 709.

.post .entry ul li {
    list-style-type: square;
}

Easiest solution would be to add another definition to the bottom of your theme’s stylesheet to undo that.

.post .entry .ui-tabs li {
    list-style-type: none;
}

And there’s another style similarly applying some extra padding..

.post .entry ul {
    margin: 0 0 20px;
    padding: 0 0 0 30px;
}

Line 704..

Adding the following to your theme stylesheet to override.

.post .entry .ui-tabs-nav { padding:0; }

Happy to help. 🙂