<!DOCTYPE html> <html> <head> <title><%= title %></title> <style> body { font: 0.9em 'Helvetica Neue', Helvetica, sans-serif } input[type=url] { width: 300px } input.field-with-error { border: 4px solid #f00 } </style> %= content_for 'header' </head> <body> <h1><%= link_to 'Link Check' => 'index' %></h1> %= content </body> </html>