WordPress/wp-includes/blocks/read-more/style.min.css

.wp-block-read-more{display:block;width:-moz-fit-content;width:fit-content}.wp-block-read-more:not([style*=text-decoration]),.wp-block-read-more:not([style*=text-decoration]):active,.wp-block-read-more:not([style*=text-decoration]):focus{text-decoration:none}