var playFun1 = function () {
  var soundEle = document.getElementById('myAudio1');
  if (soundEle.paused) {
    soundEle.play();
    document.getElementById('playButton1').className = "btn btn-lg fas fa-pause";
  } else {
    soundEle.pause();
    document.getElementById('playButton1').className = "btn btn-lg fas fa-play";
  }
};

var playFun2 = function () {
  var soundEle = document.getElementById('myAudio2');
  if (soundEle.paused) {
    soundEle.play();
    document.getElementById('playButton2').className = "btn btn-lg fas fa-pause";
  } else {
    soundEle.pause();
    document.getElementById('playButton2').className = "btn btn-lg fas fa-play";
  }
};