wordpress :: Add CSS class to every image
https://wordpress.stackexchange.com/questions/108831/add-css-class-to-every-image
http://onesixx.com/wordpress-add_filter/
function add_image_class($class){
$class .= ' additional-class';
return $class;
}
add_filter('get_image_tag_class','add_image_class');
function add_image_class($class){
$class .= ' i';
return $class;
}
add_filter('get_image_tag_class','add_image_class');
