diff --git a/preferences.html b/preferences.html
index 1bd279e..32db4c7 100644
--- a/preferences.html
+++ b/preferences.html
@@ -1568,14 +1568,14 @@ function renderEmailHtml(src, ctx){
       const color = m[1] || '#5b9cf5', buf = [];
       for(i++; i < lines.length && !/^:::\s*$/.test(lines[i]); i++) buf.push(lines[i]);
       i++;
-      html += '<div style="background:' + color + ';color:#fff;padding:24px 28px;border-radius:14px;font-size:20px;font-weight:700;line-height:1.35;margin:0 0 18px">' + inline(buf.join('<br>')) + '</div>';
+      html += '<div style="background:' + color + ';color:#fff;padding:24px 28px;border-radius:18px;font-size:20px;font-weight:700;line-height:1.35;margin:0 0 18px">' + inline(buf.join('<br>')) + '</div>';
       continue;
     }
     if(/^```/.test(line)){
       const buf = [];
       for(i++; i < lines.length && !/^```/.test(lines[i]); i++) buf.push(lines[i]);
       i++;
-      html += '<table role="presentation" cellpadding="0" cellspacing="0" style="margin:0 0 16px;border-collapse:separate"><tr><td style="background:#1d2026;color:#e6e6e6;padding:16px 18px;border-radius:12px;font-family:ui-monospace,Consolas,monospace;font-size:13px;line-height:1.55"><pre style="margin:0;overflow-x:auto;font-family:inherit"><code>' + buf.join('\n') + '</code></pre></td></tr></table>';
+      html += '<table role="presentation" cellpadding="0" cellspacing="0" style="margin:0 0 16px"><tr><td style="padding:0"><pre style="margin:0;background:#1d2026;color:#e6e6e6;padding:12px 14px;border-radius:14px;overflow-x:auto;font-family:ui-monospace,Consolas,monospace;font-size:13px;line-height:1.55"><code>' + buf.join('\n') + '</code></pre></td></tr></table>';
       continue;
     }
     if(m = line.match(/^!\[([^\]]*)\]\(([^)]+)\)\s*$/)){