* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "roboto", Arial;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
}

h1,
h2 {

    text-align: center;
font-weight: 300;
}
h1 {
font-size: 2em;
    color: rgba(0,0,0,0.87);
}
h2 {
font-size: 1.5em;
    color: rgba(0,0,0,0.54);
}

footer {
    text-align: center;
    color: rgba(0,0,0,0.38);
    position: absolute;
    right: 0;
    bottom: 30px;
    left: 0;
}

.error {
    padding: 0 20px;
position: absolute;
height: 200px;
width: 100%;
top: 50%;
margin-top: -100px;
}

@media screen and (max-width: 660px) {
    h1 {
            font-size: 1.5em;
    }
    h2 {
            font-size: 1em;
    }
    footer {
            font-size: 0.8em;
    }
}