Andrew

<!DOCTYPE html> <html> <head>   <meta charset="utf-8" />   <title></title>   <link href="https://opensource.keycdn.com/fontawesome/4.7.0/font-awesome.min.css" rel="stylesheet">   <style type="text/css">     .share-button{font-family:FontAwesome;font-size:15px;color:#fff;background-color:#4267b2;border:1px solid #4267b2;border-radius:2px;padding:2px 5px 0 5px;cursor:pointer;}   </style> </head> <body> <div id="fb-root"></div> <script type="text/javascript"> (function(d, s, id) {   var js, fjs = d.getElementsByTagName(s)[0];   if (d.getElementById(id)) return;   js = d.createElement(s); js.id = id;   js.src = "//connect.facebook.net/zh_TW/sdk.js#xfbml=1&version=v2.8&appId=你的app id";   fjs.parentNode.insertBefore(js, fjs);   }(document, 'script', 'facebook-jssdk'));   function share() {     ...