body{background-color: red;
background-size: 100vmin 100vh;
margin: 0;

font-family: monospace;}


form{
width: 450px;
margin: auto;
background: rgba(0, 0, 0, 0.3);
padding: 10px 20px;
box-sizing: border-box;
margin-top: 20px;
border-radius: 7px;
}

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

input, textarea {width: 100%;
margin-bottom: 20px;
padding: 7px;
box-sizing: border-box;
font-size: 17px;
border: none;}

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

#boton{background: black;
color: white;
padding: 20px;}

#boton:hover {
    cursor: pointer;
}

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