:root \{ color-scheme: light dark; } .icon-github \{ background-image: url({ logo_github | base64_document }); background-size: contain; background-position: center; background-repeat: no-repeat; display: inline-block; height: 2em; width: 2em; vertical-align: middle; } .icon-github > a \{ height: 100%; display: block; } .git-hackme-project-join-link > pre::selection \{ background: light-dark(lightgray, gray); color: light-dark(black, white); } .git-hackme-project-join-link > pre,button \{ display: inline; }