How to convert your photoshop document to a CSS in less than 30 seconds, a precise tutorial with illustrations

How to convert your photoshop document to a CSS in less than 30 seconds, a precise tutorial with illustrations at Jean-Jacques’s Blog: "Do you know that you can do it using photoshop and image ready and that it will take about 30 seconds ? If you want to know how do it everything is explained step by step with proper screen captures just in case"