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

arschmitz/uglymongrel-jquery-mobile,arschmitz/uglymongrel-jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/jquery-mobile,arschmitz/jquery-mobile,hinaloe/jqm-demo-ja,arschmitz/jquery-mobile,arschmitz/uglymongrel-jquery-mobile,hinaloe/jqm-demo-ja