header.amp-wp-header { padding: 12px 0; background: #ffffff; } header.amp-wp-header a { background-image: url( 'http://www.osundefender.com/wp-content/uploads/2017/09/od-amp-logo.png' ); background-repeat: no-repeat; background-size: contain; display: block; height: 28px; width: 94px; margin: 0 auto; text-indent: -9999px; }