<raw format="html" xml:space="preserve">&lt;script type="text/javascript"&gt;function CodeChat_doStyle(element) {function walk_tree(elements,func_walk,func_child) {let walk_children = [];for (let index = 0; index &lt; elements.length; ++index) {let that = elements[index];while (that &amp;&amp; !func_walk(that)) {that = that.parentElement;}if (that) {that = func_walk(that);walk_children.push(that);while (that &amp;&amp; func_child(that)) {that = func_child(that);walk_children.push(that);}}}return walk_children;};element = (typeof element !== 'undefined') ? element : document;let code = element.getElementsByClassName("fenced-code");walk_tree(code, x =&gt; x.nextElementSibling, x =&gt; x.firstElementChild).map(x =&gt;x.classList.add('CodeChat_noTop'));walk_tree(code, x =&gt; x.previousElementSibling, x =&gt; x.lastElementChild).map(x =&gt;x.classList.add('CodeChat_noBottom'));}document.addEventListener("DOMContentLoaded", function(event) { CodeChat_doStyle(); });&lt;/script&gt;</raw>