fix(pdf): fix regressions after WRS migration

Author: zoobestik

pdf/webhelp.css

@@ -210,18 +210,37 @@ h3 {
     line-height:28px;
     line-height:var(--wt-h3-line-height, 28px);
 
-    font-size: 14px;
+    font-size: 18px;
     font-style: normal;
     font-weight: 700;
     line-height: 24px;
     letter-spacing: 0px;
+
+    margin-bottom: 8px;
 }
 @media print {
     h3 {
         page-break-inside: avoid;
         page-break-after: avoid;
     }
 }
+
+h4 {
+    color:#27282c;
+    font-family:system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Droid Sans', 'Helvetica Neue', Arial, sans-serif;
+    font-size: 16px;
+    font-style: normal;
+    font-weight: 700;
+    line-height: 24px;
+    letter-spacing: 0;
+    margin-bottom: 8px;
+}
+@media print {
+    h4 {
+        page-break-inside: avoid;
+        page-break-after: avoid;
+    }
+}
 p, a, li {
     letter-spacing:normal;
     color:rgba(39, 40, 44, 0.70);
@@ -287,7 +306,7 @@ table th {
 .list {
     margin-left: 18px;
 }
-.list._ul {
+.list._ul, .list._bullet {
     list-style: disc;
 }
 .list._decimal {