will-change
default
will-change:
auto;
Doesn't tell the browser to optimize any property.
will-change: scroll-position;
Tells the browser to optimize for the element's scroll position, as it might change in the future.
will-change: contents;
Tells the browser to optimize for the element's contents, as it might change in the future.
will-change: box-shadow;
You can specify any other CSS property. For example, this tells the browser to optimize for the element's box-shadow, as it might change in the future.