JS-Screenオブジェクト
// # プロパティ
console.log(screen.availTop);
console.log(screen.availLeft);
console.log(screen.availHeight);
console.log(screen.availWidth);
console.log(screen.colorDepth);
console.log(screen.pixelDepth);
console.log(screen.height);
console.log(screen.width);
console.log(screen.orientation);