Indefinite size
A size that depends on the content, like auto height.
What is an indefinite size?
An indefinite size depends on the content, like an auto height. Percentages of an indefinite size often don't work.
.panel { height: auto; }
.panel .inner { height: 50%; } /* ignored: 50% of an indefinite height */
Level: Master · More CSS terms at this level
Updated