I really like the :target pseudo-selector. It enables you to style the target of a so called skip-link. For instance when you link to a section in an article: you could highlight the header of that section. Or you can use it for toggling simple drop-down menus — the ones you see a lot on small screens. But you can also use it to create a completely different layout.
I used this technique on my Daily Rectangle site. As you can see (if your browser supports the vh unit) all the images are as high as the viewport. That’s nice, it enables me to enjoy one single image. But sometimes I want to see all the images on a grid. I could have created a PHP script that responded to a querystring. Or a small JavaScript. But instead I used the :target pseudo-selector. It’s very simple. First I did this…