What is the HTML block? Get Satisfaction August 12, 2015 19:52 Follow What is the "HTML block? Have more questions? Submit a request 1 Comments Date Votes 0 Steve May 23, 2011 14:19 Hi Scott, The HTML embedder allows users with advanced HTML skills to add an app which could be for example a table or content with more control over the layout. Best Steve Please sign in to leave a comment.