Based on the wicket guide, since 1.5 the header contributions of children should occur before that of the Page they are contained in so that the Page can override any component contributions.
Is this still valid? We've got a case where a Panel is contributing a CSS file that's appearing in the final markup after that of the Page (which prevents our application level style sheet from overriding the component's added styles) - is there a likely reason for this that we've overlooked? N