Offer

<style>
.offer-wrapper {
  max-width: 100%;
  margin: 20px 0;
}

.offer-box {
  background: #ffc1d9;
  padding: 14px 18px;
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.offer-left {
  font-size: 16px;
  font-weight: 600;
  color: #000;
}

.offer-right {
  font-size: 14px;
  color: #000;
}

.coupon {
  border: 2px dotted #000;
  padding: 4px 10px;
  font-weight: 700;
  margin-left: 6px;
  background: #fff;
  cursor: pointer;
  position: relative;
}

.coupon.copied::after {
  content: "Copied!";
  position: absolute;
  top: -22px;
  left: 50%;
  transform: translateX(-50%);
  background: #000;
  color: #fff;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 4px;
}

@media(max-width: 768px){
  .offer-box {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}
</style>

<div class="offer-wrapper">

  <div class="offer-box">
    <div class="offer-left">🎁 Buy 1, Get 10% OFF (Prepaid Only)</div>
    <div class="offer-right">
      Use Code: <span class="coupon" onclick="copyCode(this)">buy1</span>
    </div>
  </div>

  <div class="offer-box">
    <div class="offer-left">🛒 Buy 2, Get 15% OFF (Prepaid Only)</div>
    <div class="offer-right">
      Use Code: <span class="coupon" onclick="copyCode(this)">buy2</span>
    </div>
  </div>

  <div class="offer-box">
    <div class="offer-left">🎉 Buy 3, Get 20% OFF (COD & Prepaid)</div>
    <div class="offer-right">
      Use Code: <span class="coupon" onclick="copyCode(this)">buy3</span>
    </div>
  </div>

</div>

<script>
function copyCode(el) {
  navigator.clipboard.writeText(el.innerText);

  el.classList.add("copied");
  setTimeout(() => {
    el.classList.remove("copied");
  }, 1200);
}
</script>