JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://netdna.bootstrapcdn.com/bootstrap/3.1.1/css/bootstrap.min.css">
<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.14/angular.js"></script>
    
<body ng-app ng-init='articles = [
   {"id":"1","name":"A&R","type":"P77 ","anzahl":"0"},
   {"id":"2","name":"Accuphase","type":"AC5 ","anzahl":"1"},
   {"id":"3","name":"Acoustical Systems","type":"Archon","anzahl":"1"}
  ]'>
  <div class="container">


<table class="table">
  <tr ng-repeat="article in articles" ng-class="{'custom-class': article.anzahl === '0', 'default-color': article.anzahl !== '0'}">
    <td>{{article.name}}</td>
    <td>{{article.type}}</td>
    <td ng-class="{'warning-class': article.anzahl === '0', 'default-color': article.anzahl !== '0'}">{{article.anzahl}}</td>
  </tr>
</table>

  </div>
  
</body>
</html>

CSS

.custom-class{
  background-color: gray
}

.default-color{
  background-color: white
}

.warning-class {
  background-color: red  
}