Pseric

<style>
html { 
	-webkit-filter: grayscale(100%);
	-moz-filter: grayscale(100%); 
	-ms-filter: grayscale(100%); 
	-o-filter: grayscale(100%); 
	filter: progid:DXImageTransform.Microsoft.BasicImage(grayscale=1);  
	_filter: none; 
}
</style>

Pseric

<meta property="fb:admins" content="YOUR_FACEBOOK_USER_ID" />
<meta property="fb:app_id" content="YOUR_APP_ID" />

Pseric

<script>
	function loadAPI() {
	var js = document.createElement('script');
	js.src = '//connect.facebook.net/zh_TW/sdk.js#xfbml=1&appId=YOUR_APP_ID&version=v3.2';
	document.body.appendChild(js);
}

window.onscroll = function () {
	var rect = document.getElementById('comments').getBoundingClientRect();
	if (rect.top < window.innerHeight) {

Pseric

function crunchify_gravatar_alt( $crunchifyGravatar ) {
	if ( have_comments() ) {
		$alt = get_comment_author();
	}
	else {
		$alt = get_the_author_meta( 'display_name' );
	}
	$crunchifyGravatar = str_replace( 'alt=\'\'', 'alt=\'Avatar for ' . $alt . '\' title=\'Gravatar for ' . $alt . '\'', $crunchifyGravatar );
	return $crunchifyGravatar;
}

Pseric

<div data-video="VIDEO_ID"  
    data-autoplay="0"         
    data-loop="1"             
    id="youtube-audio">
</div>
<script src="https://www.youtube.com/iframe_api"></script>
<script src="https://cdn.rawgit.com/labnol/files/master/yt.js"></script>