.big {
    font-size: 24px;  /* Or any size you prefer */
    font-weight: bold; /* If you want it bold */
}

section#reference div.highlight pre {
    color: #b30000;
    background-color: #f8f8f8;
    display: block;           /* ensures it's treated as a block */
    margin-left: auto;        /* auto margins center block elements */
    margin-right: auto;
    width: fit-content;
}
body[data-theme="dark"] section#reference div.highlight pre {
  background-color: #202020;
}
