Not sure what i am missing with this assignment

Question

This is what i am asked to do

1. Open the styles.css file.

2. Add a CSS rule for the body element that sets the background color to #E0E0E2.

3. Add a CSS rule for the h1 element that sets the text color to: #721817.

4. Add a CSS rule for the h2 element that sets the text color to: #721817.

5. Add a CSS rule for the center-text CSS class that aligns the text to center.

6. Add a CSS rule for the HTML element with the id logo. Set its left and right margins to auto and changes its display to a block element.

7. Add a CSS rule for all span elements that are children of h2 elements that sets the text color to #FA9F42 and its font size to 0.75em.

8. Add a CSS rule for the HTML element with the id copyright. Set its top padding to 12 pixels and its font size to 0.75em.

this is what i did

body{background-color:#e0e0e2;} h1{color:#721817;} h2{color:#721817;} center-text{text-align: center;} logo{margin-left:auto;margin-right:auto;display:block;} h2>span{color:#fa9f42;font-size:0.75em;} copyright{padding-top:12px;font-size:0.75em;}

this is what i need to fix but im not sure how to properly adjust it

✗ All elements with the 'center-text' class should have center-aligned text ✗ The element with the ID 'logo' should have a display of 'block' (+ 2 related tests) ✗ The element with the ID 'copyright' should have a padding-top of 12px