[regression] dijit.Calendar - hovering disabled dates is "jumpy"

[ben hockey]

go to the dijit.Calendar test page (eg ​http://download.dojotoolkit.org/release-1.7.0b5/dojo-release-1.7.0b5/dijit/tests/test_Calendar.html) click the "disable weekends" link and then move your mouse over any of the disabled dates in the Calendar. you'll see lots of ugly jumping. this is a regression from 1.6.1 where disabled dates are not highlighted when you hover over them.

[ben hockey]

a possible fix:

claro/Calendar.less

@@ -230 +230 @@
 
        /* override hover effects above, hover and click on disabled date should have no effect */
        background-color: transparent;
-       border-width: 0;
-       padding: 4px 6px 4px 5px;
+       border-color: transparent;
        color: @disabled-text-color;
 }

[bill]

The border-color: transparent doesn't work on older versions of IE. That's why we instead set border to 0 width and increase padding. But I'll fix the problem, thanks for pointing it out.

[bill]

In [26662]:

Fix regression where border was showing up on hover of disabled dates, fixes #13988 !strict.