*:not(.katex, .katex *) {
  text-align: center;
  width: fit-content;
  margin: 0 auto;
}

body {
  width: 100%;
  height: 100vh;
}

o-app {
  height: 100%;
}

header,
main,
footer {
  width: 100%;
}

.katex-display {
  overflow: auto hidden;
}

.tooltip {
  --balloon-color: white;
}

/* 隐藏所有滚动条但不影响滚动 */
html,
body,
* {
  scrollbar-width: none;
  /* Firefox */
  -ms-overflow-style: none;
  /* IE/Edge */
}

html::-webkit-scrollbar,
body::-webkit-scrollbar,
*::-webkit-scrollbar {
  display: none;
  /* Chrome/Safari/Opera */
  width: 0;
  height: 0;
  background: transparent;
}