smoking186 https://blog.hatena.ne.jp/smoking186/ 186 @ hatenablog https://186.hatenablog.com/ css えーと h3 a:first-child {text-decoration:none;}だから、 <h3><a href="#">■</a> <a href="#">none</a> <span><a href="#">underline</a></span> </h3>この場合、■とunderlineに下線が引かれるのが正解かと。子孫セレクタだから孫要素だって指定しちゃう筈。 はてな的には h3 a:first-child {text-decoration: none;} h3 * a:first-child {text-decoration: underline;}で大丈夫。子供セレクタ使… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2F186.hatenablog.com%2Fentry%2F20050726%2F1122381620" title=" to id:canarycat:20050726:p1 - 186 @ hatenablog" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2005-07-26 21:40:20 rich https://186.hatenablog.com/entry/20050726/1122381620 1.0 100%