Core CSS: Unset browser default min-width for fieldset. Fixes #6077.

The min-width was causing issues in combination with white-space nowrap to get an ellipsis.

Author: jaspermdegroot

css/structure/jquery.mobile.core.css

@@ -2,9 +2,11 @@
 .ui-mobile, .ui-mobile body { height: 99.9%; }
 .ui-mobile fieldset, .ui-page { padding: 0; margin: 0; }
 .ui-mobile a img, .ui-mobile fieldset { border-width: 0; }
+.ui-mobile fieldset { min-width: 0; }
 
 /* responsive page widths */
 .ui-mobile-viewport { margin: 0; overflow-x: visible; -webkit-text-size-adjust: 100%; -ms-text-size-adjust:none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); }
+
 /* Issue #2066 */
 body.ui-mobile-viewport,
 div.ui-mobile-viewport { overflow-x: hidden; }