form {
	margin: auto;
	width: 45%;/*Ancho del formulario*/
	max-width: 500px;
	background: linear-gradient( #1A8F7B, #1A8F7B);/*Degrada el color del formulario ingresar*/
	padding: 20px;/*largo del formulario*/
	border: 1px solid rgba(0,0,0,0.5)/*borde del formulario*/
	}
input{
	display: block;
	padding: 10px;
	width: 100%;
	margin: 30px 0;
	font-size: 20px;
	}
	
input[type="submit"]{
	
	background: linear-gradient( #1A8F7B, #FFB940);
	border: 2;
	color: brown;/*color de la letra del boton enviar*/
	opacity: 0.8;
	cursor: pointer;
	border-radius: 20px;
	margin-bottom: 0;
}
input[type="submit"]:hover{
	opacity: 1;
}
input[type="submit"]:active{
	transform: scale(0.95);
}

	
#cabeza
{
    height: 80px;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: #17e782;
    display: grid;
    place-items: center;
    font-size: 25px;
    color: #fff;
    font-weight: bold;
    text-shadow: 1px 1px 2px #000000a1;
}