body{
    margin: 0;
    
}

.contenido{
    margin: 50px;
    padding: 200px;
    
}

form{
    width: 450px;
    margin: auto;
    background: rgba(0, 0, 0, 0.4);
    padding: 10 px 20px;
    box-sizing: border-box;
    margin-top: 20px;
    border-radius: 15px;
}

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

input, textarea{
    width: 100%;
    margin-bottom: 20px;
    padding: 10px;
    box-sizing: border-box;
    font-size: 17px;
}
textarea{
    min-height: 100px;
    max-height: 200px;
}#boton{
    background: #31384A;
    color: #fff;
    padding: 20px;
}

#boton:hover{
    cursor: pointer;
    
}

.contac{
    background-color: #918f94;
    width: 100%;
    color: black;
    text-align: center;
}

.contac h3{
    font-size: 40px;
}

.contac p{
    font-size: 30px;
    font-family: Arial, Helvetica, sans-serif;
}

@media (max-width: 520px){

    
    
    .contenido{
        padding: 50px;
    }
    
    form{
               
        width: 40%;
    }

    .contac{
        width: 100%;
    }

    .contac h3{
        font-size: 25px;

    }
    
    .contac p{
        font-size: 20px;
        font-family: Arial, Helvetica, sans-serif;
    }

}