On day 47, I introduced you to the overscroll-behavior property, and I showed you how to use it to disable scroll-chaining. There’s another feature we can disable using this property.
On day 46, I’ve explained how you can order layers by defining them in a comma-separated list first. The first layer in the list has the lowest priority and the last layer the highest.
Most elements have no preferred aspect ratio. On day 42 I’ve explained how you can use the aspect-ratio property to define a ratio for these elements. Replaced elements like <iframe>, <video>, <embed>, or <img>, on the other hand, have an intrinsic aspect ratio. This means that you don’t have to define one using the aspect-ratio property and they will scale naturally.
On day 9 I’ve talked about the inset shorthand properties inset, inset-inline, and inset-block. I don’t believe that I will need those often, but inset can come in handy when you want one element to fill another element entirely.