@media only screen and (min-width: 320px){
    body{
        background-size: 100vh 100vw;
        background-repeat: no-repeat;
    }
    h2{
        font-size: 20px;
        opacity: 0.7;
        white-space: nowrap;
    }

}

@media only screen and (min-height: 370px) and (min-width: 400px){
    body{
        background-repeat: no-repeat;
    }
    header, main, footer{
        position: relative;
        top: 20px;
    }
    
}

body{
    padding: 0;
    margin: 0;
    background-image: url("img/background.jpg");
    background-size: 100vw 100vh;
    background-repeat: no-repeat;
    font-size: 16px;
    font-family: sans-serif;
    text-align: center;
    color: white;
}

h2{
    opacity: 0.7;
    white-space: nowrap;
}

#article-one, #article-two{
    margin-top: 40px;
    margin-bottom: 30px;
}

textarea{
    margin-top: 7px;
    opacity: 0.6;
    color: black;
    font-weight: 900;
    font-family: sans-serif;
    font-size: 15px;
}

#aviso{
    font-weight: 900;
    position: relative;
}

button{
    cursor: pointer;
}
button:hover{
    background-color: black;
    color: white;
}