<div class="marquee">
		<div class="marquee__wrap">
			<div class="marquee__content">
				<span>Лучшие мастера</span>
				<span>Безопасно</span>
				<span>Конфиденциально</span>
			</div>
		</div> 
	</div>

.marquee {
    padding: 5px 0;
    background-color: #000;
    color: #fff;
}

.marquee__wrap {
    display: flex;
}

.marquee__content {
    white-space: nowrap;
    flex-shrink: 0;
    animation: marquee 5s linear infinite;
}

.marquee__content span {
    padding: 0 25px;
    font-size: 22px;
    font-family: sans-serif;
    font-weight: bold;
    font-style: italic;
    line-height: 1.3;
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-100%);
  }
}

document.addEventListener('DOMContentLoaded', () => {
  // Marquee

  const marquee = document.querySelector('.marquee')
  const marqueeWrap = document.querySelector('.marquee__wrap')
  const marqueeContent = document.querySelector('.marquee__content')

  function duplicateItems() {
    const marqueeWidth = marquee.offsetWidth
    const marqueeContentWidth = marqueeContent.offsetWidth
    const originalContent = marqueeWrap.innerHTML

    const itemsNeeded = Math.ceil(marqueeWidth / marqueeContentWidth) + 1

    const duplicatedItems = Array.from(
      { length: itemsNeeded },
      () => originalContent
    ).join('')

    marqueeWrap.innerHTML = duplicatedItems
  }

  window.addEventListener('resize', duplicateItems)
  window.addEventListener('load', duplicateItems)
})