Open Chrome on your Chromebook
Go to the page you want to inspect
Press Ctrl + Shift + I
Or press Ctrl + Shift + J to open the Console
Right-click the page and select Inspect
Use the Elements tab to view and edit HTML
Use the Console tab to view errors and run commands
Use the Network tab to inspect page requests
Use the Sources tab to view scripts and files
Press Ctrl + Shift + C to select an element on the page
Close DevTools by pressing Ctrl + Shift + I again