3d кнопки

Создаем разметку HTML: <style> @import url('https://fonts.googleapis.com/css?family=Roboto+Condensed:300,400'); </style> <ul> <li> <a href="#"> <i class="fa fa-facebook" aria-hidden="true"></i> <span> - Facebook</span> </a> </li> <li> <a href="#"> <i class="fa...