<div class="t1 t1-start flex flex-col min-h-100vh">
<div class="t1 flex-1">
<div class="t1 b-1-dashed-current bg-c-gray-50 color-gray-500 rounded-4 text-center p-8">main</div>
</div>
<div class="t1">
<div class="t1 b-1-dashed-current bg-c-gray-50 color-gray-500 rounded-4 text-center p-8">bottom</div>
</div>
</div>