h1 {
    text-align: center;

}


img {
    display: block;
    max-width: 100%;
    background-color: lightgray;
    margin: 0 auto;
}

.gray-border {
    border-color: lightgray;
    border-width: 20px;
    border-style: solid;
}

figcaption {
    margin-top: -5px;
    padding: 15px 0 5px 0;
    background-color: lightgray;
}

p {
    text-align: justify;
}