The main difference between using @extend and @mixin is in the output CSS. Like, If you want to create 5 box and only the color of the background would be changed. And you use mixins.

SassScript supports control directives for including styles only under specific condition or including same style several times with variations. Their main purpose is to use them in mixins, those that are part libraries like Compass and requires flexibility.

Qforms module is similar to webform module but it is much lighter then webform and is much simpler for using. The main idea behind qforms module is to keep it simple for the end user.

One tool that makes spam detection and prevention extremely easy is the Drupal 7 Mollom module. This module uses the Mollom service to give your Drupal website capabilities to add captchas to forms, or even analyze text for content that looks like Spam.

Firebug is a free and open-source web browser add-ons for Mozilla Firefox, and now also for Google Chrome. Which gives facilities to the live debugging, editing, and monitoring of any website's CSS, HTML, DOM, XHR, and JavaScript.

Most of the times you need image gallery to show images in a better way. Here we are going to create Image Gallery in a simple way. For this you will need:

Simplenews publishes and sends newsletters to lists of subscribers. By Simplenews you can send nodes as newsletters to subscribers and it support for multi-language newsletters.