.formulario {
	width: 100%;
	height: auto;
	margin: 10% auto;
}

form {
	width: 540px;
	height: auto;
	margin: 0 auto;
	padding: 10px 20px;
	background: rgb(0,0,0,0.4);
	box-sizing: border-box;
	margin-top: 10%;
	border-radius: 8px;
	border: 2px solid #fff;
}

.formulario h2 {
	color: #fff;
	text-align: center;
	font-size: 1.2em;
	text-shadow: 1px 1px 2px #000;
	margin: 15px 0;
}

input, textarea {
	width: 100%;
	margin-bottom: 20px;
	padding: 7px;
	box-sizing: border-box;
	font-size: 16px;
	border: none;
}

textarea {
	min-height: 100px;
	max-height: 200px;
	max-width: 100%;
}

#boton {
	width: 500px;
	height: 40px;
	margin: 0 auto 10px;
	background: rgba(0,51,131);
	color:#fff;
	padding: 10px;
	text-align: center;
}

#boton:hover {
	cursor: pointer;
}


@media (max-width:1024px) {

	.formulario {
		margin: 15% auto 5%;
	}

@media (max-width:768px) {
	
	.form {
		width: 95%;
	}
	
	.formulario {
		width: 95%;
		margin: 20% auto;
	}
	
	.formulario h2 {
		font-size: 1.1em;
		margin: 10px 0;
	}
}

@media (max-width:450px) {
	
	form {
		width: 96%;
	}
	
	.formulario h2 {
		font-size: 1em;
		margin: 10px 0;
	}
	
	#boton {
		width: 100%;
	}
}