Learn HTML by Building a Cat Photo App - Step 1

HTML-CSS
1

Tell us what’s happening:
Describe your issue in detail here. hoping to be guided

Your code so far

<hellol>
  <world>
    <h1>Hello World</h1>
  </body>
</html>

Your browser information:

User Agent is: Mozilla/5.0 (X11; CrOS x86_64 13505.63.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36

Challenge: Learn HTML by Building a Cat Photo App - Step 1

Link to the challenge:

2

In case it helps, take a look at this post then try to restart this step again