Make the scroller element support the scoped css

[momopig]

My implementation ideas is: As you know, the scrollView element is the parent node of scroller element, and they are in the same css scope. We can get the hash attribute just like 'data-v-xxxx' from the scrollView element, and create a same one to the scroller element. The concrete implementation will show in my code, and I send a pull request.

Looking forward to your reply

[Dafrok]

11 Good idea, I suppose. By the way, 我以为你是个老外！

[momopig]

哈哈，同性交友平台遇同胞。