var width = document.getElementById('myID').offsetWidth;//includes margin,border,padding var height = document.getElementById('myID'). offsetHeight;//includes margin,border,padding
// Get Content + Padding + Border let box = document.querySelector('div'); let width = box.offsetWidth; let height = box.offsetHeight; // Get Content + Padding only let box = document.querySelector('div'); let width = box.clientWidth; let height = box.clientHeight;