Static: Positioning an element in the normal flow, declaring positions is not needed; Fixed: Positioning an element with fixed position; it is the same as when you set to absolute except that the ...

We have at least one spot in the spec, currently, where behavior differs based on whether an element is "using anchor positioning" or not (and which isn't directly about anchors) - an element "using ...

To use positioning on an element, you must first declare its position property to be absolute or relative: H1 { position: absolute } Then you can add whatever positioning properties you like. For ...

Tony Patton focuses on CSS fundamentals and explains how multiple rules for the same element are handled. Multiple rules ensure that there will be no surprises for either you or the user community.