body{
	background-color: yellon;
}
.tela_l{
	background-color: rgba(160, 200, 181, 0.9);
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	padding: 30px;
	border-radius: 10px;
	box-shadow: 10px 10px 5px rgb(82,11,77);
	color: black;
}

.pisca {
    animation: pisca 1s steps(2, end) infinite;
}

@keyframes pisca {
    0%, 100% {
    opacity: 1;
}
    50% {
    opacity: 0;
    }
}
label.ou{
	color: red;
}