App.css

#BarChart { 
  display: flex; 
  flex-direction: row; /* Arrange the Bars Horizontally using FlexBox  */
  align-items: flex-end; /* Have the bars start at the bottom and go up */
  justify-content: center; /* Center the bars in the middle of the screen */
  margin: 50px;
}

.bar {
  background-color: #3aa70f; /* Have each bar be a nice green */
  width: 10px; /* The animation will start with each bar being 10px wide, and then expand outwards */
}