:root{
/* Quick, precise. No bounces, no float. */
--ease-out:cubic-bezier(.19,.62,.22,.99); /* @kind other */
--ease-inout:cubic-bezier(.6,0,.2,1); /* @kind other */
--dur-fast:120ms; /* @kind other */
--dur-base:180ms; /* @kind other */
--dur-slow:280ms; /* @kind other */
}