HTML
HyperText Markup Language
HTML: ハイパーテキストマークアップ言語 | MDN
HTML の基本 - ウェブ開発を学ぶ | MDN
code:html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>My test page</title>
</head>
<body>
<h1>Mozilla is cool</h1>
<img src="images/firefox-icon.png" alt="The Firefox logo: a flaming fox surrounding the Earth.">
<p>At Mozilla, we’re a global community of</p>
<ul> <!-- changed to list in the tutorial -->
<li>technologists</li>
<li>thinkers</li>
<li>builders</li>
</ul>
<p>working together to keep the Internet alive and accessible, so people worldwide can be informed contributors and creators of the Web.
We believe this act of human collaboration across an open platform is essential to individual growth and our collective future.</p>
<p>Read the <a href="https://www.mozilla.org/en-US/about/manifesto/">Mozilla Manifesto</a>
to learn even more about the values and principles that guide the pursuit of our mission.</p>
</body>
</html>
タグ
<a>
href
hypertext reference
<img>
<div>
<meta>
エンティティ
特殊な文字
©: &copy;
: &nbsp;
ノーブレークスペース
予約済み文字
&: &amp;
<: &lt;
> :&gt;
": &quot;
Entity (エンティティ) - MDN Web Docs 用語集: ウェブ関連用語の定義 | MDN