UI Date picker opacity issue
I've isolated an issue that presents itself in Firefox where an inline style setting for opacity: 0 is being added when the date picker input is clicked. It appears to be related to the application of any animation to the click event. In the jquery-ui.js file, when I set the animation name to null in line 5866, the opacity value is not applied to the div named 'ui-datepicker-div'. I've tested all available animations and they behave the same way. Applicable to JQUI 1.11.2 using jQuery 1.11.2.