Intrinsic size

In CSS, the intrinsic size of an element is the size it would have based purely on its content, without taking into account the effects of the layout context it appears in. This is the opposite of an element’s extrinsic size, which is determined by external constraints such as container size. An element’s intrinsic sizes are represented by its min-content and max-content sizes.

Inline elements are sized intrinsically. CSS box model properties such as height, width, block-size, inline-size, padding-block, and margin-block have no impact on their layout (though margin-inline and padding-inline do affect spacing within a line).