vue-vben-admin/src/components/VirtualScroll/src/index.less

.virtual-scroll {
  position: relative;
  display: block;
  width: 100%;
  max-width: 100%;
  overflow: auto;
  flex: 1 1 auto;

  &__container {
    display: block;
  }

  &__item {
    position: absolute;
    right: 0;
    left: 0;
  }
}