@media only screen and (max-width: 600px) {
    article {
        width: 100%;
        max-width: none;
    }

    /*pre, code {
        white-space: pre-line;
        word-wrap: break-word;
        overflow-wrap: break-word;
        max-width: 100%;
    }*/

}
/*
@media only screen and (min-width: 601px) {
    code {
        display: block;
        max-width: 100%;
        overflow-x: auto;
    }
}*/