            overlayEle.appendChild(mirroredEle);
        
            const textareaStyles = window.getComputedStyle(textarea);
            [
                'border',
                'boxSizing',
                'fontFamily',
                'fontSize',
                'fontWeight',
                'letterSpacing',
                'lineHeight',
                'textDecoration',
                'textIndent',
                'textTransform',
                'whiteSpace',
                'wordSpacing',
      