.Month {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.GridItem,
.GridHeadItem {
  flex-basis: 100px;
  flex-grow: 1;
}

.GridItem {
  border: solid thin lightgray;
  height: 150px;
  padding: 5px;
}

.GridHeadItem {
  height: 20px;
  text-align: center;
  line-height: 20px;
  padding: 10px 5px 10px 5px;
}

.GridHead {
  display: flex;
}

.GridHead {
  margin-right: 16.8px;
}

.Grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr 1fr 1fr 1fr;
  overflow-y: auto;
  height: calc(100vh - 115px);
  border: solid thin gray;
}

.GridItem[relative] > span {
  color: gray;
}