With mobile devices becoming more ubiquitous and pervasive, the focus of web developers has shifted from the desktop to the mobile. This has introduced a new challenge to Drupal designers as themes should now work on desktops as well as a variety of handheld devices with varying screen sizes and resolutions. Responsive themes were created to respond to this challenge. Here are the Top 4 Drupal Responsive themes. Also check out The Top 10 themes for Drupal 6. If you want a custom responsive theme instead, contact us to build a custom drupal theme for you. We also provide numerous other Drupal services like Drupal Third Pary Integration and Drupal SEO.