<style>
  /* Стили для элемента таймера */
  .timer {
   color: #000000;
font-size: 25px;
font-family: 'Arial',Arial,sans-serif;
line-height: 1;
font-weight: 600;
letter-spacing: 0.5px;
background-position: center center;
border-color: transparent;
border-style: solid;
    /* Другие стили */
  }
</style>



<script>
  const timerElement = document.querySelector('.timer');

  function saveStyles(element) {
    const styles = getComputedStyle(element);
    return styles.cssText;
  }

  function updateTimer() {
    let time = 4500;
    const savedStyles = saveStyles(timerElement);

    function countdown() {
      time -= 1;
      timerElement.textContent = time;

      if (time === 356) {
        time = 4500;
        timerElement.style.cssText = savedStyles;
      }

      if (time !== 356) {
        setTimeout(countdown, 0.2);
      }
    }

    countdown();
  }

  window.onload = () => {
    updateTimer();
  };
</script>