Level 0 - Level 1

Username: natas1
Password: g9D9cREhslqBKtcA2uocGHPfMZVzeFK6
URL:      http://natas1.natas.labs.overthewire.org

In this challenge also, you can find the password for the next level in the page source code, but you can't use right click to open the drop down menu to choose the inspect or view page source option.

So you can use the Ctrl + shift + i shortcut to access the Dev-Tools Inspect element tab or the Ctrl + u shortcut to open the page source code to get the flag.