maxHt

maxHt is an informal or shorthand notation that represents the maximum height constraint applied to a visual element in web development and user interface design. The official CSS property that enforces this constraint is max‑height, which defines the highest allowable height for an element while permitting it to shrink to fit content or other size constraints. Developers sometimes use the abbreviated form maxHt in inline style objects, JavaScript frameworks, or CSS-in-JS libraries to reduce typing and to follow a naming convention that matches other style attributes such as maxWd or minHt.

In plain CSS, the property is written as max-height: 200px; where the value can be a length, percent, or the keyword none. When used in JavaScript objects or React style sheets, developers might write style={{ maxHt: '200px' }} and rely on a build step or style helper to translate the key into the valid CSS property. This practice is common in libraries that map camelCase names to CSS properties, but it is not part of the CSS standard itself.

While maxHt can expedite coding, it carries risks because it is not recognized by browsers without a translation step. Using the canonical max-height property ensures broader compatibility, clearer intent, and easier maintenance. The abbreviation is mainly an internal convention rather than a portable feature, so it is often replaced by the full name in production code or in shared components.