person? blurb?

Hello,

I would just like to ask if you guys have any idea on what they have used to do this.

https://postimg.org/image/keu9y565d/

When you rollover to the picture the bg color will changed, and when you clicked the picture a set of text will appear.

Any tips?

Thanks

btw this is their actual website http://www.longitudecapital.com/