this one:
/* Naked Embeds */
.markdown-embed-title { display: none; }
.markdown-preview-view .markdown-embed-content>:first-child { margin-top: 0;}
.markdown-preview-view .markdown-embed-content>:last-child { margin-bottom: 0;}
/*remove the following two line, you will get border and scroll*/
.markdown-preview-view .markdown-embed { border:none; padding:0; margin:0; }
.markdown-preview-view .markdown-embed-content {
max-height: unset;
background-color: var(--background-secondary); /*define different bg color*/
}
/* the link on the top right corner*/
.markdown-embed-link {
color: var(--text-faint) !important;
}
.markdown-embed-link:hover {
color: var(--text-accent) !important;
}