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<h2 style="font-size:60px;text-align:center;color: DodgerBlue;">Single or Double Quotes?</h2>
<p>In some situations,<mark style="color: Tomato"> when the attribute value itself contains double quotes, it is necessary to use single quotes</mark>:</p>
<p>Move your mouse over the paragraphs below to see the effect:</p>
<p>My favorite color is <del>blue</del><ins> red.</ins></p>
<p>H<sub>2</sub>O</p>
<p>(a+b)<sup>2</sup></p>
<p title='Eric "Cheated" Nikson'>Eric with double quotes</p>
<p title="Eric 'Cheated' Nikson">Eric with single quotes</p>