body {
	background:url(https://solucom.cl/sphcphp/d/img/chincol3.jpg);
	background-size: 100vw 100vh;
	background-attachment: fixed;
	margin: 0;

	font-family: monospace;
}

a {
    text-decoration: none;
}
/* unvisited link */
a:link {
    color: white;
}

/* visited link */
a:visited {
    color: yellow;
}

/* mouse over link */
a:hover {
    color: hotpink;
}

/* selected link */
a:active {
    color: blue;
}
form{
	width: 450px;
	margin: auto;
	background: rgba(0,0,0,0.4);
	padding: 10px 20px;
	box-sizing:border-box;
	margin-top: 40px;
	border-radius: 10px
}

h2 {
	color: #fff;
	text-align: center;
	margin:0;
	font-size: 30px;
	margin-bottom: 20px;
}

input, textarea{
	width: 100%;
	margin-bottom: 10px;
	padding: 7px;
	box-sizing:border-box; 
	font-size: 17px;
	border:none;
}
#boton {
	background: #31384A;
	color: #fff;
	padding: 20px;

}

#boton:hover{
	cursor: pointer;
}

@media (max-width: 480px) {
	form{
		width: 100%;
	}
}