Block YouTube video by default

assets/css/common/global.css

@@ -25,6 +25,10 @@ a {
     color: #72afd2;
 }
 
+.cursor-pointer {
+    cursor: pointer;
+}
+
 /**
  * Sceditor iframe
  */

assets/css/components/posts/ui.css

@@ -63,6 +63,20 @@
 	text-align: center;
 }
 
+.post .post-youtube.post-youtube-placeholder {
+	display: flex;
+	flex-direction: column;
+	align-items: center;
+	justify-content: space-around;
+	background-color: #3c8dbc;
+	color: white;
+	border-radius: 5px;
+}
+
+.post .post-youtube.post-youtube-placeholder .title {
+	font-size: 150%;
+}
+
 .post .post-youtube {
 	width: 100%;
 	height: 300px;