After you follow the video above you will open the HTML file in your browser and open the developer tool

STEP 1

first after opening the browser right click on the screen of the page to pop up options

You don't have to worry if you use other browsers it is all the same once you have right-clicked find the inspect and click it as you see in the picture above.

STEP 2

once you click inspect a popup window will come

once this popup comes choose the console tab. different browsers may have different designs but it is the same you just need to find the console tab and click it

after click the console the tab will shift and you will see something like this

and now you have finished opening the console of a browser. After this, you can easily follow the video that will follow. if you have question try to ask through the contact info

GOOD LUCK