Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
Digistore24 is a German digital reselling and affiliate marketing platform.
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
OWL Carousel is an enabled jQuery plugin that lets you create responsive carousel sliders.
PHP is a general-purpose scripting language used for web development.