pinecove.html

<div id="my-container">
  <img />
</div>

<script>
var sizeContainer = function() {
  // console.log(subtractPixels);
  var subtractPixels = 24;
  // console.log(subtractPixels);
  document.querySelector('#my-container')
    .style.height = (window.innerHeight - subtractPixels) + 'px';
  // console.log(document.querySelector('#my-container'));
  // console.log((window.innerHeight - subtractPixels) + 'px');
};
sizeContainer();
window.addEventListener('resize', sizeContainer);
</script>