CSS transitions should allow binary styles to be changed

It would be nice to be able to do this:

#menuToggle input~#menu {
    /* Hide menu */
    display: none;
    transition: display 0ms 0.5s;
}
#menuToggle input:checked~#menu {
    /* Display menu */
    display: unset;
    transition: display 0ms 0ms;
}

A major thing CSS transitions are lacking right now is the ability to transition "binary" properties such as display, where there is no clear way to gradually transition them. However, this doesn't mean it wouldn't be useful to be able to simply delay their being changed. Being able to slide a pure CSS menu off the page, for example, is currently supported, but it then needs to be set to display:none to take it out of the document flow. When this is specified as a transition, the transition should simply do nothing until the delay has passed and then transition instantly.

No repository files, tests, or entry points are named. Start by reviewing the issue's CSS examples and the surrounding CSS Transitions specification work; done means reaching and documenting a resolved behavior for delayed binary-style changes.