.page {
  position: relative;
  isolation: isolate;
}

.scroll-sentinel {
  position: absolute;
  inset-block-start: 0;
  inset-inline-start: 0;
  width: 1px;
  height: 2.5rem;
  pointer-events: none;
}


.page {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}
.page > main {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
}