#app {
  margin: 0;
  width: 100%;
  height: 100vh;
  max-width: 500px;
  /* min-height: calc(100vh - 100px); */
  /* overflow: hidden; */
}
body {
  margin: 0;
  padding: 0;
  display: block;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  /* max-width: 500px; */
}
::-webkit-scrollbar {
  width: 3px;
  /* 横向滚动条的宽度 */
  height: 10px;
  /* 纵向滚动条的高度 */
  background-color: #E4DCC5;
  /* 轨道背景色 */
}
::-webkit-scrollbar-thumb {
  background-color: #88866F;
  /* 滑块背景色 */
  border-radius: 5px;
  /* 滚动条滑块圆角 */
  box-shadow: inset 0 0 6px #F1E9D4;
  /* 滚动条滑块阴影效果 */
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
