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Tailwind CSS class: .animate-pulse

    <span class="inline-block animate-pulse rounded-full p-2 bg-teal-400 text-white text-sm">animate-pulse
        <svg class="w-6 h-6 mx-auto" xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke="currentColor">
            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 13l-7 7-7-7m14-8l-7 7-7-7" />
        </svg>
    </span>

Preview

animate-pulse

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