#owo-big {
  position: fixed;
  align-items: center;
  background-color: rgb(255, 255, 255);
  border: 1px #aaa solid;
  border-radius: 10px;
  z-index: 9999;
  display: none;
  transform: translate(0, -105%);
  overflow: hidden;
  animation: owoIn 0.3s cubic-bezier(0.42, 0, 0.3, 1.11);
}

[data-theme="dark"] #owo-big {
  background-color: #4a4a4a;
}

#owo-big img {
  width: 100%;
}

/* 动画效果代码由 Heo：https://blog.zhheo.com/ 提供 */
@keyframes owoIn {
  0% {
    transform: translate(0, -95%);
    opacity: 0;
  }
  100% {
    transform: translate(0, -105%);
    opacity: 1;
  }
}