#rootSelect {
  display: inline-block;
  position: relative;
  font-family: sans-serif;
}

#rootSelectButton {
  width: 100%;
  cursor: pointer;
  font-size: medium;
}

#rootSelectMenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #f8f8f8;
  border: 1px solid #ccc;
  padding: 6px;
  z-index: 10;
}

#rootSelect.open #rootSelectMenu {
  display: flex;
  flex-direction: column;
  width: -webkit-fill-available;
  justify-content: space-between;
  align-items: stretch;
}

.mc-row {
  display: flex;
  flex-direction: row;
  justify-content: stretch;
  align-items: flex-start;
}

.mc-col {
  display: flex;
  flex-direction: column;
  justify-content: stretch;
  align-items: flex-start;
  width: 50px;
}

.mc-option {
  padding: 4px 6px;
  cursor: pointer;
  border-radius: 4px;
  text-align: center;
  width: 100%;
  height: 100%;
}

.mc-option:hover {
  background: #eee;
}