[](https://travis-ci.org/PolymerElements/iron-fit-behavior) _[Demo and API Docs](https://elements.polymer-project.org/elements/iron-fit-behavior)_ ##Polymer.IronFitBehavior Polymer.IronFitBehavior fits an element in another element using `max-height` and `max-width`, and optionally centers it in the window or another element. The element will only be sized and/or positioned if it has not already been sized and/or positioned by CSS. CSS properties | Action -----------------------------|------------------------------------------- `position` set | Element is not centered horizontally or vertically `top` or `bottom` set | Element is not vertically centered `left` or `right` set | Element is not horizontally centered `max-height` or `height` set | Element respects `max-height` or `height` `max-width` or `width` set | Element respects `max-width` or `width`