<div class="relative bg-gray-600 py-6">
Relative
<div class="absolute bottom-0 left-0 bg-gray-800 p-4">
Absolute
</div>
</div>
<div class="relative bg-gray-600 py-6">
Relative
<div class="absolute bottom-0 left-0 bg-gray-800 p-4">
Absolute
</div>
</div>
.relative {
position: relative;
}