SSR support

[slightlytyler]

Really like the patterns react-hold exposes. Any thoughts on SSR support?

[toplan]

Thanks. I am making a plugin project to support animation for Placeholder component. Then, will test SSR.

Warning:

postcss-loader

react-hold-animation\style.css:360:5: Gradient has outdated direction syntax. 
New syntax is like `to left` instead of `right`.

@toplan