function createPlayerPlaceholder(placeholderWidth, placeholderHeight) {
        placeholderElement = document.createElement('div');
        placeholderElement.classList.add(PLACEHOLDER_CLASS);
        placeholderElement.style.height = `${placeholderHeight}px`;
        placeholderElement.style.width = `${placeholderWidth}px`;
        placeholderElement.innerText = playerInstance.displayOptions.layoutControls.miniPlayer.placeholderText || '';
        placeholderElement.onclick = () => toggleMiniPlayer('off', true);

        playerInstance.domRef.wrapper.parentElement.insertBefore(placeholderElement, playerInstance.domRef.wrapper);
    }
Creates a placeholder element in place where the video player was

@param {number} placeholderWidth
@param {number} placeholderHeight