Pivot Tables are one of the most powerful and useful tool. They will save you a lot of time by allowing you to quickly summarize large amounts of data into a meaningful report
Semantic UI (Semantic User Interface) is one of the best modern front-end CSS & JS framework, powered by LESS and JQuery. This is also like as Bootstrap framework. This is a light weight framework. Using this framework we can able to design unique wonderful themes or web applications. This has lot of in-build components such as
Elements, Collections, Views, Modules, behaviors.