I just made this one, and added some different code to it.
More specifically I added,:
transform: scale(.5); width: 100%; height: 100%;
<button id="playButton2" style="display:block; width: 266px; height: 266px; cursor: pointer; background-color: black; border: 3px solid #0059dd;" onclick="
var button = document.getElementById('playButton2');
var player = document.getElementById('player2');
player.volume=1.0; if (player.paused) {
playButton2.innerHTML = '<svg width=\'100%\' height=\'100%\' style=\'background-color:red;color: #0059dd;transform: scale(.5);\' viewBox=\'0 0 60 100\'><path fill=\'currentColor\' d=\'M0 8c0-5 3-8 8-8s9 3 9 8v84c0 5-4 8-9 8s-8-3-8-8V8zm43 0c0-5 3-8 8-8s8 3 8 8v84c0 5-3 8-8 8s-8-3-8-8V8z\'></svg>';
player.play();
} else {
playButton2.innerHTML = '<svg width=\'100%\' height=\'100%\' style=\'background-color:red;color: #0059dd;transform: scale(.5);\' viewBox=\'0 0 85 100\'><path fill=\'currentColor\' d=\'M81 44.6c5 3 5 7.8 0 10.8L9 98.7c-5 3-9 .7-9-5V6.3c0-5.7 4-8 9-5l72 43.3z\'></svg>';
player.pause();
}">
<svg style="background-color:red;transform: scale(.5); width: 100%; height: 100%;" viewBox="0 0 85 100">
<path fill="currentColor" style="fill:#0059dd;" d="M81 44.6c5 3 5 7.8 0 10.8L9 98.7c-5 3-9 .7-9-5V6.3c0-5.7 4-8 9-5l72 43.3z"></path>
</svg>
</button>
<audio id="player2" style="display:none;">
<source src='' type='audio/mpeg'></source>
</audio>