Code — Print the template as CSS class on body - martindubenet/Wordpress GitHub Wiki

Print Wordpress template informations as class within the front-end code so you can customize the CSS for a specific page or template.

Print CSS class on body tag.

<body <?php { body_class(); } ?>>

For theme debugging

This will add ICL_LANGUAGE_CODE, the WPML language variable, within the set of class names on the body tag ONLY for loggin users.

<body <?php if ( is_user_logged_in() ) { body_class(ICL_LANGUAGE_CODE); } ?>>

Considering that only developers and authors logs in the Wordpress, this gives developers more tools to analyse and repair bugs or procede with change request in a theme that is new to them.