CSS浮动广告定位技巧分享

  
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.floating-ad {
  position: fixed;
  right: 20px;
  bottom: 30px;
  width: 250px;
  height: auto;
  background: white;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  border-radius: 8px;
  z-index: 1000;
  transition: transform 0.3s ease;
}

.floating-ad:hover {
  transform: scale(1.05);
}

.floating-ad img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px 8px 0 0;
}

.close-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #fff;
  border: none;
  font-size: 16px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0.7;
}

.close-btn:hover {
  opacity: 1;
  background: #f0f0f0;
}

document.querySelector('.close-btn').addEventListener('click', function() {
  document.querySelector('.floating-ad').style.display = 'none';
});

@media (max-width: 480px) {
  .floating-ad {
    width: 200px;
    right: 10px;
    bottom: 10px;
  }
}