img {
    display: block;
    max-width: 80%;
    width: auto;
    height: auto;
    margin: 20px;
    margin-left: auto;
    margin-right: auto;
}

figure {
    display: block;
    max-width: 80%;
    width: auto;
    height: auto;
    margin: 20px;
    margin-left: auto;
    margin-right: auto;
}

pre {
    text-wrap: auto;
    background-color: #F0F0F0;
    width: auto;
}