#fixed-bottom-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.15);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 4px 0;
}

/* Show only the block that matches the screen width */
#ad-mobile {
  display: none;
}

@media (max-width: 600px) {
  #ad-desktop {
    display: none;
  }
  #ad-mobile {
    display: block;
  }
}

#close-banner {
  position: absolute;
  right: 6px;
  top: 6px;
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  z-index: 10000;
}