Chris Converse exples techniques to modify the cols, visibility, and even stroke values of your images, using the PHP header function and query variables to modify CSS rules in an SVG. This technique is a great way to build a library of reusable graphics f any PHP-based website content management system, including WdPress, Drupal, and Joomla! The exercise files are free to all members. Download them to start practicing this technique today.
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