themes-wordpress/bibliophile/style.css

/*
Theme Name: Bibliophile
Theme URI: https://wordpress.com/theme/bibliophile/
Author: Automattic
Author URI: https://automattic.com
Description: Bibliophile was designed to provide an impeccable reading experience. Its header on the left sidebar adds context, while its posts and content are elegantly displayed on the right. Inspired by printed books and with carefully chosen font sizes, Bibliophile offers a great solution for websites across devices. The layout is user-friendly and allows for seamless navigation, making it an ideal choice for those who enjoy reading on-the-go.
Requires at least: 6.1
Tested up to: 6.2
Requires PHP: 5.7
Version: 1.0.2
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: bibliophile
Tags: blog, education, news, one-column, left-sidebar, wide-blocks, block-patterns, custom-colors, custom-header, custom-logo, custom-menu, editor-style, full-site-editing, rtl-language-support, template-editing, theme-options, threaded-comments, translation-ready, books
*/

/*
 * Control the hover stylings of outline block style.
 * Unnecessary once block styles are configurable via theme.json
 * https://github.com/WordPress/gutenberg/issues/42794
 */
.wp-block-button.is-style-outline>.wp-block-button__link:not(.has-background):hover {
	background-color: var(--wp--preset--color--secondary);
	color: var(--wp--preset--color--background);
	border-color: var(--wp--preset--color--secondary);
}

/*
 * Link styles
 * https://github.com/WordPress/gutenberg/issues/42319
 */
a {
	text-decoration-thickness: .0625em !important;
	text-underline-offset: .15em;
}