jQuery Fade in Site/Content Once It's Loaded?
First, a side point: In general, web designers spend a lot of time trying to improve perceived page load time, getting things shown as quickly as possible. This actively goes the other way, presenting a blank page until everything is ready, which may not be ideal.
But if it's appropriate for your situation:
Since everything visible will be a descendant of body, you could load body hidden and then fade it in. It would be important to include a fallback for users without JavaScript (typically fewer than 2% at least according to Yahoo, but still). So along the lines of:
(Live Copy)
<!DOCTYPE html>
<html>
<head>
<title>Example</title>
<!-- This next would probably be in your main CSS file, but shown
inline here just for purposes of the example
-->
<style type="text/css">
body {
/* Hide it for nifty fade-in effect */
display: none;
}
</style>
<!-- Fallback for non-JavaScript people -->
<noscript>
<style type="text/css">
body {
/* Re-displays it by overriding the above */
display: block;
}
</style>
</noscript>
</head>
<body>
...content...
<script src="jquery.js"></script>
<script>
// This version runs the function *immediately*
(function($) {
$(document.body).fadeIn(1000);
})(jQuery);
</script>
</body>
</html>
A couple of variations on the script part of that, depending on when you want the fade-in to occur:
Wait for "ready" event:
Live Copy
// This version waits until jQuery's "ready" event
jQuery(function($) {
$(document.body).fadeIn(1000);
});
Wait for the window#load event:
Live Copy
// This version waits until the window#load event
(function($) {
$(window).load(function() {
$(document.body).fadeIn(1000);
});
})(jQuery);
window#load fires very late in the page load process, after all external resources (including all images) have loaded. But you said you wanted to wait until everything was loaded, so that might be what you want to do. It will definitely make your page seem slower...
Yes, wrap your content with a div (e.g. <div id="main-content">) and in your css put this:
div#main-content { display: none; }
Then use this script.
$(document).ready(function() {
$('#main-content').fadeIn();
});
Another way to accomplish this is via the Animate.css project. Its pure CSS so there is no need to rely on JS:
https://daneden.me/animate/
Just add the 'animated' and 'fadeIn' class to your parent element and all children will fade in.