HTML & CSS 3. ID SELECTORS ? 3/12, please help (:


 I am very confused about how to add an ID or Class selector to a group.
 Can someone please explain how to do this in detail, 
as the intructions aren't very clear. Thank you all so very much. 

/* Add the ID selector to this CSS rule */

  margin: 0 auto;
  position: relative;
  text-align: center;
  top: 25%;
  width: 60%;

And also 

 /* Add the class selector to this CSS rule */

  padding: 20px;
  text-align: center;
  margin: 0 auto;
  border-bottom: 1px solid #EEE;


for id's the selectors should start with #:


for class this should be a full stop:



Thank you . I figured it out. #header-text (:smile: