CSS class ui-tabs is not presented in html but there is in CSS-file - broken form

Hello!

CSS class 'ui-tabs' is not in html code in Webform, but there are much of class descriptions in .css file of the Module like '.ui-tabs .any-child-element'. It makes the form broken.

For example, ajax pages are hidden with such class: 'ui-tabs-hidden', but in .css file is: '.ui-tabs .ui-tabs-hidden {display: none !important; }' - so all ajax pages are shown on one first page coz there no 'ui-tabs' class on no html element on the page.

May be it is only on my theme but I doubt (I'm using not modified save css "Pixture Reloaded" theme). You can see my page here - but I just changed the code (moved the Module's code into my theme .css and deleted all '.ui-tabs') parts.

Great Thanks!