我无法想到一种仅通过javascript来实现此目的的方法，而无需设置css param溢出:隐藏(手动或通过javascript).为什么溢出:隐藏对您来说不是一个好选择?

I can't think of a way to do this from javascript ONLY, without setting the css param overflow:hidden (either manually, or from javascript). Why is it that overflow:hidden is not a good option for you?