Table is formatted to the right

I have installed the plugin, and the table is showing up, however it is positioned to the right. I am not sure how to go about changing this.

Below is a link to the HTML timetable that I have created and used the snippet for. It is also creating a faint border underneath rows that I do not want it for is there a way to sort this out?

https://217.199.187.197/mayurpande.com/wordpress/timetable2/

https://www.ads-software.com/plugins/insert-html-snippet/