Your h2 element should be blue. Though my code is right! Help!

I am stuck at “Your h2 element should be blue” though the code I have posted is right. I even can see the outpur correct. i.e. h2 head getting red as expected. still the error wont go and i am not able to proceed to next challenge.

  h2 {color: red;}  
<h2> CatPhotoApp </h2>
<p>Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>

What is the name of the challenge you are working on?

Challenge I am working on is CSS Selector

just chan ‘red’ for ‘blue’

   h2 {
  color: blue;