cant pass this one

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**
    <h2> Cat Photos </h2> 
    <!--  TODO: Add link to cat photos  --> 
    <p> Click here to view more cat photos. </p>  
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36

Challenge: Step 6

Link to the challenge:

Add 2 spaces in front of the 3 children elements in your main element.

Not able to understand what is happening here Here’s my answer in detail