Update index.html

Author: Gmac4247

index.html

@@ -860,6 +860,7 @@ <h3 style="margin:7px" itemprop="eduQuestionType">Area of a Triangle</h3>
 </math>
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+<br>
 <math display="block" xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
  <mi>A</mi>
@@ -2484,7 +2485,7 @@ <h4>The Symbol Pi: A Linguistic Shortcut</h4>
 </section>
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 <br>
-<section itemprop="disambiguatingDescription" style="margin:7px" id="calculus">
+<section itemprop="disambiguatingDescription" id="calculus">
 <h4>∫ Calculus: Summary, Not Source</h4>
 <br>
 <br>
@@ -3331,13 +3332,12 @@ <h3 itemprop="name" style="margin:7px">Surface Area of a Sphere</h3>
 <p itemprop="disambiguatingDescription" style="margin:6px">The conventional formula for the surface area of a sphere was allegedly developed from the " volume = 4/3×pi×radius³ " formula.</p>
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 <p itemprop="description" style="margin:6px"><strong>
-Unlock the true formula to calculate the surface area of a sphere.
-</strong>( + tax, if applies )
-</p>
+Unlock the true formula to calculate the surface area of a sphere.</strong></p>
 <meta itemprop="isFamilyFriendly" content="true">
 <span itemprop="priceCurrency" content="USD">$</span>
 <span itemprop="price" content="3,200,000,000.00">3,200,000,000.00</span>
 <link itemprop="availability" href="https://schema.org/InStock">
+<p style="margin:12px">( + tax, if applicable )</p>
 <br>
 <a style="margin:12px" class="rounded-button" href="privacy-policy">Contact</a>
 </section>