JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://github.com/downloads/emberjs/ember.js/ember-0.9.5.js"></script>
<input id="mic" lang="en" x-webkit-speech>

CSS

input::-webkit-input-speech-button {
  -webkit-appearance: none;width: 50px;height: 30px;background-color: #CCCCCC;
}

JavaScript

document.getElementById('mic').onwebkitspeechchange = function(evt){
    console.log(evt);
};