Hello, Simran,
Thank you for your inquiry. Unfortunately, the “Read More” button does not have the described functionality by default. It would require additional customization in files or the use of a third-party plugin. As this is outside of our basic support scope, we are unable to assist you. We suggest that you contact the support team of the WooCommerce plugin for further assistance.
Please check the Private Content also.
About “header gap issue”, please provide URL of page where we will be able to see it. Also, let us know what browser you use.
Kind Regards,
8theme team