title: Blink or flash text on update of data from websocket
body: <p>Using vuejs with single file components and vuex.  Data is streaming in over a websocket connection, and I'm using Vuex to manage state and bind the data to display in various components.  That all works great.</p>
  
  <p>I just use mapState in the component file, and then display that value in the html. </p>
  
  <p>For some of the data, I'd like to apply some transition whenever a value changes.  i.e. 
  - flash/blink the value
  - flash/blink the background color</p>
  
  <p>I'm displaying numerical values, and thought might look nice to briefly flash green when the number changes up and red when the number changes down.  Still debating if I want to flash the actual text, or the div containing the text.  Also debating if I want to revert color back to black after the brief color flash.</p>
  
  <p>Is there a way to easily to do this in vuejs?  I understand how to use computed values, but how can I fire some color change animation when the value updates from vuex.</p>