* {
  background-color: gray;
}


.App {
  text-align: center;
  background-color: gray;
}

.App-header {
  background-color: gray;
  height: 150px;
  padding: 10px;
  color: white;
}

.App-header h1 {
  font-size: 5em;
  font-family: Arial;
  font-weight: 100;
}

.App-intro {
  font-size: large;
}

* {
  background-color: gray;
}


.App {
  text-align: center;
  background-color: gray;
  color: white;
}

.App-header {
  background-color: gray;
  height: 150px;
  padding: 10px;
  color: white;
}

.App-header h1 {
  font-size: 5em;
  font-family: Arial;
  font-weight: 100;
}

.App-intro {
  font-size: large;
}

Change default font color to white
Change default font color to white
