Bookmarklet to apply grids (requires jQuery on the site)

grid_bookmarklet.js

javascript:(function($){var width=990;var columns=25;var gutter=10;var column_width=(width-(gutter*(columns-1)))/columns;var grid_container=$('<div id="grid-container"></div>');grid_container.css('z-index','999999');grid_container.css('position','absolute');grid_container.css('top',0);grid_container.css('left',0);grid_container.css('width','100%');grid_container.css('height',$(document).height()+'px');var grid=$('<div id="grid"></div>');grid.css('width',width+'px');grid.css('margin','0 auto');var column=$('<div id="column"></div>');column.css('height',$(document).height()+'px');column.css('background-color','rgba(50,150,255,.2)');column.css('width',column_width+'px');column.css('float','left');column.css('margin-left',gutter+'px');grid.append(column.clone().css('clear','left').css('margin',0));for(var i=0;i<(columns-1);i++){column.clone().appendTo(grid);};grid_container.append(grid);$('body').append(grid_container);}(jQuery));