And then again
If you are starting from scratch with a new layout that you are doing (as opposed to a template) then Inger (a senior advisor on this forum) has a whole load of ready made components that she has done, that are available for download
https://mock-up.coffeecup.com

(including some nice image gallery thingy's.) also pretty easy to customise, and are already set for breakpoints etc

Go take a look