Border

<div class="p-4">
    <p class="border p-4 mb-4">border</p>
    <p class="border border-primary p-4 mb-4">border-primary</p>
    <p class="border border-secondary p-4 mb-4">border-secondary</p>

    <div class="grid grid-cols-4 gap-4">
        <p class="border-r p-4">
            border-r
        </p>
        <p class="border-l p-4">
            border-l
        </p>
        <p class="border-t p-4">
            border-t
        </p>
        <p class="border-b p-4">
            border-b
        </p>
    </div>
</div>