W3Schools Tryit Editor

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<title>W3.CSS</title>
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 <h1>I am a Heading</h1>
 <p>I am a paragraph.</p>
 <p>Normally you will not have to change the default padding of a container, because paragraphs and heading provide margins that will simulate padding.</p>
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<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="https://www.w3schools.com/w3css/tryit.asp?filename=tryw3css_containers_padding">(->オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="https://www.w3schools.com/w3css/tryit.asp?filename=tryw3css_containers_padding" size="22" /></label> <label>モード: <select name="naked_post_mode">
<option value="default">デフォルト</option>
<option value="speech">音声ブラウザ</option>
<option value="ruby">ルビ付き</option>
<option value="contrast" selected="selected">配色反転</option>
<option value="larger-text">文字拡大</option>
<option value="mobile">モバイル</option>
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<input type="submit" value="表示" />
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