fix for tag only lines creating a newline <br>

index.html

@@ -5,6 +5,7 @@
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <title>Micron Playground</title>
     <script src="https://cdn.tailwindcss.com"></script>
+    <script src="vendor/purify.min.js"></script>
     <script type="module" src="js/micron-parser.js"></script>
     <style>
         @font-face {

js/micron-parser.js

@@ -631,7 +631,7 @@ class MicronParser {
             output.push([this.stateToStyle(state), this.splitAtSpaces(part)]);
         }
 
-        return (output.length > 0) ? output : null;
+        return output;
     }
 
     parseField(line, startIndex, state) {