.md-build {
  height: calc(100vh - 1rem);
  background-color: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
}
.md-build .txt {
  color: #e53834;
  opacity: 0.5;
  letter-spacing: 0.9em;
  font-style: italic;
}