.ir-arriba
{
	display: none;
	padding: 20px;
	background: transparent;
	font-size: 30px;
	color: #fff;
	cursor: pointer;
	position: fixed;
	bottom: 10px;
	right: 10px;
}
.ir-arribacarreras
{
	display: none;
	padding: 20px;
	background: transparent;
	font-size: 30px;
	color:  #252932;
	cursor: pointer;
	position: fixed;
	bottom: 10px;
	right: 10px;
}