Container

<div class="bg-white w-2/3 min-h-screen absolute right-0 top-0 z-20 shadow-xl">
    <div class="flex flex-col justify-between min-h-screen">
        <div class="p-xlSpace space-y-lgSpace grow">
            Side panel overlay
        </div>

        <div class="flex-1 grow h-full rounded p-lgSpace bg-tertiary-100 flex flex-col items-end max-sm:space-y-smSpace sm:flex-row justify-end sm:items-start sm:space-x-mdSpace">
            Actions here
        </div>
    </div>
</div>

<div class="bg-black opacity-50 w-full h-full absolute top-0 left-0 z-10">

</div>