If the class is targeting a div you don't need to write div in front of it in the css

[farishkash]

For example in your css you have

div.head1{display:block;
  height: 700px;
padding-top: 60px;
background-image:url(https://s3.amazonaws.com/codecademy-content/courses/freelance-1/unit-4/img-mission-background.jpg);}

You do not need the word div here as .head1 is the class for the div so it is already implied.

Writing this is sufficient

.head1{
display:block;
  height: 700px;
padding-top: 60px;
background-image:url(https://s3.amazonaws.com/codecademy-content/courses/freelance-1/unit-4/img-mission-background.jpg);
}

[ney17]

Thank you noted.