Make moving items with images and text less buggy (#1283)
Make moving items with images and text less buggy (#1283)

* Make moving items with images and text less buggy 

First of all, thank you a lot for an awesome module!

I have only one proposed change :-) When you try to drag on an image inside the grid for example then browsers usually starts dragging the image, like if you want to drag it into another application and save it there etc. This makes the actual dragging of items in the grid very buggy. At least half of the time when I tried to drag on top of an image in Chrome on my Mac it started dragging the image only + then I let go of mousedown and the item starts moving, but it also makes `onLayoutChange` not even fire.

So adding this simple css solves all that :-) Also fixes problems that might arise when dragging on text. 

It took me quite a long while to realise this was the issue and I was going to create an issue on this module that `onLayoutChange` doesn't always fire even when you have moved something and it has fixated in position. But this small css fixes all that from what I've seen, sometimes life is actually simple :-) 

Let me know what you think! :)

* Update styles.css
STRML/react-grid-layout,STRML/react-grid-layout,STRML/react-grid-layout