W3Schools Tryit Editor

<!doctype html>
<html>

<body>
<h1>The overflow-x Property</h1>
<p>The overflow-x property specifies whether to clip the content, add a scroll bar, or display overflow content of a block-level element, when it overflows at the left and right edges.</p>
<h2>overflow-x: scroll:</h2>
<div>Lorem ipsum dolor sit amet, consectetuer adipiscing elit...</div>
<h2>overflow-x: hidden:</h2>
<div>Lorem ipsum dolor sit amet, consectetuer adipiscing elit..</div>
<h2>overflow-x: auto:</h2>
<div>Lorem ipsum dolor sit amet, consectetuer adipiscing elit...</div>
<h2>overflow-x: visible (default):</h2>
<div>Lorem ipsum dolor sit amet, consectetuer adipiscing elit...</div>
</div><div class="naked_ctrl">
<form action="/index.cgi/larger-text" method="get" name="gate">
<p><a href="http://altstyle.alfasado.net">AltStyle</a> によって変換されたページ <a href="http://www.w3schools.com/cssref/tryit.php?filename=trycss3_overflow-x">(->オリジナル)</a>
/ <label>アドレス: <input type="text" name="naked_post_url" value="http://www.w3schools.com/cssref/tryit.php?filename=trycss3_overflow-x" 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">配色反転</option>
<option value="larger-text" selected="selected">文字拡大</option>
<option value="mobile">モバイル</option>
</select>
<input type="submit" value="表示" />
</p>
</form>
</div>		
</body>
</html>