Document Active Element (DAE) is a JavaScript bookmarklet intended to help you more easily identify where the activeElement is on your screen. 

To use:

1. Add a new bookmark
2. in the "Name" field, type DAE
3. in the URL field, add the following code: 

```javascript
javascript:(function(){ document.activeElement.style.border = "1px solid red"; })();
```

That's it!