tinymce.init({ selector: "textarea", element_format: "xhtml", schema: "html5", plugins: ["link"], //force_br_newlines : true, force_p_newlines : true, //forced_root_block : '', toolbar1: "undo redo | bold italic | link | outdent bullist indent", toolbar2: "fontsizeselect | alignleft aligncenter alignright alignjustify | ad_lineheight | align-justify reset-justify", setup: function(editor) { editor
![tinymceエディタを拡張する。line-heightのボタンを追加 - Qiita](https://cdn-ak-scissors.b.st-hatena.com/image/square/a16cdb5acf4ec52bbd5b6a58e233332e19cec0a8/height=288;version=1;width=512/https%3A%2F%2Fqiita-user-contents.imgix.net%2Fhttps%253A%252F%252Fcdn.qiita.com%252Fassets%252Fpublic%252Farticle-ogp-background-412672c5f0600ab9a64263b751f1bc81.png%3Fixlib%3Drb-4.0.0%26w%3D1200%26mark64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZ3PTk3MiZoPTM3OCZ0eHQ9dGlueW1jZSVFMyU4MiVBOCVFMyU4MyU4NyVFMyU4MiVBMyVFMyU4MiVCRiVFMyU4MiU5MiVFNiU4QiVBMSVFNSVCQyVCNSVFMyU4MSU5OSVFMyU4MiU4QiVFMyU4MCU4MmxpbmUtaGVpZ2h0JUUzJTgxJUFFJUUzJTgzJTlDJUUzJTgyJUJGJUUzJTgzJUIzJUUzJTgyJTkyJUU4JUJGJUJEJUU1JThBJUEwJnR4dC1hbGlnbj1sZWZ0JTJDdG9wJnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9NTYmcz05ZDcyYjJmYjg4OWI4OWQ1ZjBlOTZmNmYwNTExMDhjOA%26mark-x%3D142%26mark-y%3D57%26blend64%3DaHR0cHM6Ly9xaWl0YS11c2VyLWNvbnRlbnRzLmltZ2l4Lm5ldC9-dGV4dD9peGxpYj1yYi00LjAuMCZoPTc2Jnc9NzcwJnR4dD0lNDBrdGt0JnR4dC1jb2xvcj0lMjMyMTIxMjEmdHh0LWZvbnQ9SGlyYWdpbm8lMjBTYW5zJTIwVzYmdHh0LXNpemU9MzYmdHh0LWFsaWduPWxlZnQlMkN0b3Amcz0xNmI0OGUyODlkZGQxNjhlOWE5N2I4YWM3MjllNTRjNQ%26blend-x%3D142%26blend-y%3D436%26blend-mode%3Dnormal%26txt64%3DaW4g5qCq5byP5Lya56S-TElH%26txt-width%3D770%26txt-clip%3Dend%252Cellipsis%26txt-color%3D%2523212121%26txt-font%3DHiragino%2520Sans%2520W6%26txt-size%3D36%26txt-x%3D156%26txt-y%3D536%26s%3De977b5f46e018ed9887f841882f0bca8)