.btn-small {
	padding: 6px 16px;
	font-size: 12px;
	line-height: normal;
}
.btn-medium {
	padding: 10px 20px;
	font-size: 16px;
	line-height: normal;
}
.btn-large {
	padding: 14px 24px;
	font-size: 20px;
	line-height: normal;
}
.btn-xlarge {
	padding: 18px 28px;
	font-size: 24px;
	line-height: normal;
}

button:disabled,
button[disabled]{
  border: 1px solid #999999;
  background-color: #cccccc;
  color: #666666;
}

.hidden {
	display: none;
}