In this video, we've shown how to basically use the "elements" tab and "source" tab. As we start the video, we started on how we can open up or pull up the chrome dev tools. Then we have also shown how we can the chrome dev tools' theme settings to dark. Then from that, we have explored how we can manipulate the element in the DOM within the elements tab. Not only that we have shown how to use the style and computed pane. Lastly, we have demonstrated how we can synchronize your local copy of your source code into your browser for you to make some changes immediately.