Code block feature in the rich text editor is too unattractive

[hoixding]

I add it in userstyle.css
pre.hljs {
font-family: Source Code Pro;
font-size: 14px; /* Adjust font size as needed /
color: #333; / Dark gray text /
border: 1px solid black;
padding: 10px;
margin: 5px;
line-height: 1em; / Adjust the value as needed */
}