before vue-hljs-with-line-number

assets/styles/app.scss

@@ -70,8 +70,27 @@ $mango: #FF8040;
 
 .ql-syntax {
   background-color: #222222;
+  border: 1px solid #888;
+  border-left: 3px solid $primary;
+  color: #666;
+  page-break-inside: avoid;
+  font-family: monospace;
+  font-size: 15px;
+  line-height: 1.6;
+  margin-bottom: 1.6em;
+  max-width: 100%;
+  overflow: auto;
+  padding: 1em 1.5em;
+  display: block;
+  word-wrap: break-word;
 }
 
+pre span.hljs-tag::before, span.hljs-attr::before {
+  content: "xxx";
+  display: inline-block;
+}
+
+
 .wrapper {
   clear: both;
   position: sticky;