html,
body,
.app {
  height: 100%;
}

body {
  overflow: hidden;
}

.main {
  height: 100dvh;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.header {
  flex: 0 0 auto;
}

.view.active {
  min-height: 0;
  overflow: auto;
}