WB Social Share brings very attractive responsive social share buttons of Facebook, Twitter, Linkedin, Xing, Reddit, Google+ and Pinterest to WordPress posts, page, media or any custom post type. This is very lightweight and simple social sharing plugin.
This extension provides option whether you want to include plugin CSS/JS or not. Most of the social sharing plugins use images/api to display social share buttons, but this plugin created large social sharing buttons using CSS3. Also, these social sharing buttons are responsive. For device width, less than 480px these buttons converted into their respective icons.