You are using single quotation in single quotation which is not possible, use one of the below approch, Approch 1 (‘ \’ ‘): ‘post_alert_user’ => esc_html__(‘Thank you for your submission at ‘, ‘usp-pro’) .$user[‘admin_name’] . esc_html__(‘! If submissions require approval, you\’ll receive an email once it\’s approved.’, ‘usp-pro’), Approch 2 (” ‘ “): ‘post_alert_user’ => … Read more
You might set the line height of the h2 in the custom css like this h2 { line-height: 5px !important } but this is just a workaround.
I think you’re <a> tag does have a styling of display: block try display: inline-block; on on you’re <a> tag
If “line advances” are line breaks you could try wrapping the output in wpautop()
Why is WP ignoring my line breaks?
It’s really just about which bytes are stored in a file. CR is a bytecode for carriage return (from the days of typewriters) and LF similarly, for line feed. It just refers to the bytes that are placed as end-of-line markers. Way more information, as always, on wikipedia.