Collapsible widgets are a popular way to create sections of content that can contract and expand. There are a ton of different implementations out there. Here, thanks to checkbox input elements, label elements and the :checked pseudo-selector, we’ll be able create such widget without the need for extra JavaScript.

On this Christmas, a lot of us will pay more then $1000 for a new iPhone XY or for a similar Samsung one (twice the price of a netbook) and you will have in your hand a quite powerful machine: for instance iPhone used as Theorem Prover is faster then an Intel Workstation (!)

In the 1980, privacy was a lot easier to acquire. Banks can harvest information on us, but the limited computer power was a big limiting factor to their analyzing dreams. 

We are happy to announce a Solar-powered search engine on our web site. The search is integrated with the site, so click on the right upper icon to open the search box, type your words and the search will be far more relevant.