html,
body {
  height: calc(100% - 1px);
  width: calc(100% - 1px);
  display: flex;
  margin: 0;
}

main {
  display: flex;
  flex-grow: 1;
}

main > div {
  display: flex;
  flex-grow: 1;
}

.layout {
  height: 100%;
  width: 100%;
  box-sizing: border-box;
  display: flex;
  background-color: #ebf2f7;
  flex-grow: 1;
}

.layout > div {
  display: flex;
}