const app = new PIXI.Application({ autoResize: true, resolution: devicePixelRatio, backgroundColor: 0x0073db }); document.getElementById('game').appendChild(app.view); // -------------------------------------- code -------------------------------------- // ------------------------------------ end code ------------------------------------ // Resize (Do Not modify) window.addEventListener('resize', resize); function resize() { let game = document.getElementById('game'); app.renderer.resize(game.offsetWidth, game.offsetHeight); } resize();