Simple code fence
console.log('4');
JavaScriptSimple code fence within HTML tags
```js
console.log('5');
```
console.log('5');
JavaScriptTesting code blocks in HTML tags
Testing Markdown inside a details/summary block
Hidden Code Sample
```js
console.log('5');
```
console.log('5');
JavaScript
Testing markdown wrapped in a DIV
Test H2
Code sample:
console.log('5');
JavaScriptTesting custom Input/Output:
```js
console.log('5');
```
console.log('5');
JavaScript