themes-wordpress/erma/style.css

/*
Theme Name: Erma
Theme URI: 
Author: Automattic
Author URI: https://automattic.com/
Description: Erma is a WordPress portfolio block theme that features gorgeous imagery and modern layouts. With three unique style variations and elegant templates, Erma is the perfect choice for artists, designers, and other creative professionals looking to showcase their work in an eye-catching way. The theme's design is clean and sophisticated, allowing your portfolio pieces to take center stage.
Requires at least: 5.8
Tested up to: 6.2
Requires PHP: 5.7
Version: 1.0.9
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: erma
Tags: one-column, block-patterns, custom-colors, custom-menu, custom-logo, editor-style, featured-images, full-site-editing, rtl-language-support, theme-options, threaded-comments, translation-ready, wide-blocks, style-variations
*/

/*
 * 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--base);
	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;
}