.markdown img {
    width: 80%;
    max-width: 640px;
    max-height: 640px;
    display: block;
    margin: auto;
}

.markdown pre:has(code) {
    background-color: rgba(127, 127, 127, 0.1);
    padding: 5px;
}

.markdown table {
    margin: auto
}

.markdown thead {
    border-bottom: 3px double black;
    text-align: center;
}

.markdown tbody tr {
    border-bottom: 1px solid lightgray;
}

.markdown td {
    padding: 5px;
}