.text-center { text-align: center; }
.button.button-purple,
button.button-purple,
input[type="submit"].button-purple,
input[type="reset"].button-purple,
input[type="button"].button-purple {
  color: #FFF;
  background-color: #800080;
  border-color: #800080; 
 }
.button.button-purple:hover,
button.button-purple:hover,
input[type="submit"].button-purple:hover,
input[type="reset"].button-purple:hover,
input[type="button"].button-purple:hover,
.button.button-purple:focus,
button.button-purple:focus,
input[type="submit"].button-purple:focus,
input[type="reset"].button-purple:focus,
input[type="button"].button-purple:focus {
  color: #FFF;
  background-color: #a301a3;
  border-color: #a301a3; 
}
.measurementImg {
	width: 80%;
	margin: 0 auto;
	margin-right: auto;
	display: block;
}
h3.purple, h5.purple {
	color: purple;
}
.error {
	color: red; 
	width: 100%; 
	margin-bottom: 10px;
}