I have a new JavaScript framework in the making (university project) and I'll give you some background to explain my issue...The HTML may have {message} in it (this is a variable), and my framework will parse that with whatever value it should be.The problem is the "variables" flash up for a split second then go away.I have fixed this by making my framework check if the body is using display: none; and if it is, it will change it so it is shown (at a point in time where all variables are parsed), so no flashes with this method !Will using \[code\]<body style="display: none;">\[/code\] in the HTML effect SEO negatively ?It is almost instantly changed by the JavaScript but Google bots don't run JavaScript do they ?