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<h1>The margin-top Property</h1>
<p>A paragraph with no margins specified.</p>
<p>A paragraph with a 2 em top margin. The em unit is relative to the font-size of the element (2em means 2 times the size of the current font).</p>
<p>A paragraph with no margins specified.</p>
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<option value="ruby">ルビ付き</option>
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<option value="larger-text">文字拡大</option>
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