Very simple button request

Hi,

Could somebody please take the following button, and keep the size, text, and everything, but make the button flash red and then back to it's original grey colour every half a second or there abouts?

Button
View attachment awww.adminaddict.net_data_MetaMirrorCache_ba6c823c273e554df072aedbdab0b4ca.jpg

Thanks.

 

How's this?

View attachment 538

I could slow it down a little if you like...

 

No, that's fantastic - thank you very much!

 

You're very welcome.