const values = {}; export default { getValue: function(className, property, element = 'div'){ const k = className + '|' + property; if (values[k]) return values[k]; else{ let d = document.createElement(element); d.style.display = "none"; d.className = className; document.body.appendChild(d); values[k] = getComputedStyle(d)[property]; document.body.removeChild(d); return values[k]; } } }