.prose-mockup-code pre{margin-block:12px 4px;padding-block:0}.prose-mockup-code pre:before{content:unset}.prose-mockup-code pre code span.line{padding-left:8px}.prose-mockup-code pre code span.line:before{content:attr(line);display:inline-block;opacity:.5;pointer-events:none;width:28px}