Change the read more excerpt link into a button

How can I change the read more excerpt link into a button with a hover styles?

Hi, you have to create a child theme to enable it.

After you create a child theme, add this line below on your functions.php:

function new_excerpt_more( $more ) {
	return ' <br><a class="read-more roll-button" href="' . get_permalink( get_the_ID() ) . '">' . __( 'Read More', 'your-text-domain' ) . '</a>';
}
add_filter( 'excerpt_more', 'new_excerpt_more' );

reference: https://codex.wordpress.org/Function_Reference/the_excerpt

Thank you for the reply.
I am not really sure how to create a child theme. Can this code be pasted into custom CSS ?

Hi, sorry for the inconvenience. but No you can’t, this theme are using the_excerpt() wordpress functions for the blog posts, so you have to create a child theme to make a link to the excerpt.