Theme: Collapse border in .ui-helper-cleafix. Fixes #8442 - CSS: ui-helper-clearfix bug within table with border spacing.

Author: scottgonzalez

themes/base/jquery.ui.core.css

@@ -38,6 +38,7 @@
 .ui-helper-clearfix:after {
 	content: "";
 	display: table;
+	border-collapse: collapse;
 }
 .ui-helper-clearfix:after {
 	clear: both;