<body ng-app="">
  <input type="button" value="renk" ng-click="myStyle={color:'red'}">
<input type="button" value="arka plan" ng-click="myStyle={'background-color':'blue'}">
<input type="button" value="temizle" ng-click="myStyle={}">
<br/>
<span ng-style="myStyle">W3TR</span>

</body>

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/angular.js/1.5.2/angular.min.js