/* backgroundize.css */
:root {
  --mobile-bg-image: url('https://s2.loli.net/2024/12/20/OGTtQbqwBE92UFm.webp');
  --current-background: var(--mobile-bg-image);
}

#web_bg {
  background-image: var(--current-background);
  position: fixed;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transition: all 0.5s ease;
}