animation动画的使用animation：mymove 5s infinite-webkit-animation:mymove 5s infinite; /Safari and Chrome/@keyframes mymove{from {left:0px;}to {left:200px;}}总结：动画&:hover {transform: scale(0.5); // 这个是缩放o

How to remove a property from a JavaScript object怎么删除一个对象上的属性呢？dleteconst car = {color: 'blue',brand: 'Ford'}delete car.branddelete car['brand']delete car.branddelete newCar['brand']Setting a property