.btn-master{
	background-color:var(--master-color, #007bff);
	border-color:var(--slave-color, #007bff);
	color:var(--master-color-opposite, #ffffff);
} 

.btn-master:hover{
	background-color:var(--slave-color, #0069d9);
	color:var(--slave-color-opposite, #ffffff);
	border-color:var(--master-color, #007bff);
}

.btn-master:active{
	color:var(--slave-color-opposite, #ffffff);
	background-color:var(--slave-color, #0069d9);
	border-color:var(--master-color, #007bff);
}