This is a hacked up greasemonkey script that navigates to problematic pages and replaces inline styles with classes - run it on a page with links to articles with inline styles 2 column layouts it will then fix those up and you simply have to click save t

greasemonkey-portal-styles-script

// ==UserScript==
// @name        Cleanup
// @namespace   /
// @description aasas
// @include     http://en.wikipedia.org/*
// @include     http://www.mediawiki.org/wiki/List_of_Problematic_portal_pages_with_two_column_layouts
// @version     1
// @require     http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js
// ==/UserScript==


var ta = $( '[name=wpTextbox1]' );

if( ta.length === 0 && window.location.href.indexOf( 'mediawiki.org' ) > -1 ) {
	jQuery( '#content ul a' ).each( function(i, el) {
		if( $( el ).parent( 'del' ).length === 0 && !$( el ).hasClass( 'external' ) ) {
			$( el ).css( 'color', 'red' );
			window.open( $( el ).attr( 'href' ) + '?action=edit' );
		}
	} );
}

if( ta.length > 0 && $( '#wikiDiff' ).length === 0 ) {
	var R = 'class="portal-column-right"',
		R_narrow = 'class="portal-column-right-narrow"',
		L_big = 'class="portal-column-left-wide"',
		L = 'class="portal-column-left"';
	ta.each( function( i, el ) {
		var val = $( el ).val(), initialLength = val.length;
		val = val.replace( /style\="float:right; width:43%"/g, 'class="portal-column-right"' );
		val = val.replace( /style\="float:left; width:56%;"/g, 'class="portal-column-left"' );
		val = val.replace( /style\="float:left; width:58%;"/g, 'class="portal-column-left"' );
		val = val.replace( /style\="width:41%; float:right;"/g, 'class="portal-column-right"' );
		val = val.replace( /style\="float:left; width:54%;"/g, 'class="portal-column-left"' );
		val = val.replace( /style\="float:right; width:45%"/g, 'class="portal-column-right"' );
		val = val.replace( /style\="float:left; width:55%;"/g, 'class="portal-column-left"' );
		val = val.replace( /style\="float:right; width:44%"/g, 'class="portal-column-right"' );
		val = val.replace( /style\="width:44%; float:right;"/g, 'class="portal-column-right"' );
		
		
		val = val.replace( /style\="float:left; width:50%;"/g, 'class="portal-column-left"' );
		val = val.replace( /style\="width:49%; float:right;"/g, 'class="portal-column-right"' );
		val = val.replace( /style\="float:left; width:49%"/g, L );
		val = val.replace( /style\="float:right; width:43%"/g, R );
		val = val.replace( /style\="float:left; width:55%"/, L );
		val = val.replace( /style\="float:right; width:50%/, R );
		val = val.replace( /style\="float:left; width:45%"/, L );
		val = val.replace( /style\="float:right; width:41%"/, R );
		val = val.replace( /style\="float:right; width:30%"/, R_narrow );
		val = val.replace( /style\="float:left; width:58%"/, L );
		val = val.replace( /style\="float:right; width:41%"/, R );
		val = val.replace( /style\="float:left; width:25%"/, L ); // yeh i know...
		val = val.replace( /style\="float:left; width:45%/, L );
		val = val.replace( /style\="float:right; width:30%"/, R_narrow );

		var match  = val.match( /width: ?[0-9][0-9]%/ );
		if( val.length === initialLength && !match ) {
			window.close();
		} else if( !match ){
			$( el ).val( val );
			$( '#wpDiff' ).trigger( 'click' );
		}
		
	} );
}