<div class="splash-container">
  <h1 class="splash-text">Welcome to My Website</h1>
</div>

body {
  margin: 0;
  overflow: hidden;
  background-color: #3a3a3a;
  color: #ffffff;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.splash-text {
  text-align: center;
  font-size: 50px;
  opacity: 0;
  transform: translateY(-100px);
  transition: opacity 1s, transform 1s;
  position: relative;
  z-index: 1;
}

.smoke {
  position: absolute;
  width: 30px;
  height: 30px;
  background-color: #ca9fff;
  border-radius: 50%;
  transform: scale(1);
  animation: smokeAnimation 1s ease-out;
}

@keyframes smokeAnimation {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }

  100% {
    transform: scale(30);
    opacity: 0;
  }
}

document.addEventListener('DOMContentLoaded', () => {
  const splashText = document.querySelector('.splash-text');

  setTimeout(() => {
    splashText.style.opacity = '1';
    splashText.style.transform = 'translateY(0)';

    createSmoke(splashText);
  }, 500);

  function createSmoke(container) {
    const smoke = document.createElement('div');
    smoke.classList.add('smoke');
    container.appendChild(smoke);

    const x = container.clientWidth / 2;
    const y = container.clientHeight / 2;

    smoke.style.left = `${x}px`;
    smoke.style.top = `${y}px`;

    setTimeout(() => {
      smoke.remove();
    }, 1000);
  }
})