How do I add image to the <header> section in css? Help

Question

CSS coding

Answer 1

Here are some links that might help:
http://www.google.com/url?sa=t&source=web&cd=1&ved=0ahUKEwidp_yRxZ7QAhUJ4YMKHQP3BVUQFggaMAA&url=http%3A%2F%2Fdocs.layerswp.com%2Fdoc%2Fhow-to-add-a-background-image-to-the-header%2F&usg=AFQjCNFyLn6AKz1tfsRrqLrNsLhJ_DhsaQ
http://www.google.com/url?sa=t&source=web&cd=2&ved=0ahUKEwidp_yRxZ7QAhUJ4YMKHQP3BVUQFggcMAE&url=http%3A%2F%2Fstackoverflow.com%2Fquestions%2F11525132%2Fcss-centred-header-image&usg=AFQjCNFH1hUFNaHUPO3r0I9Le_2b-PNgHw

Answer 2

thank you