Tối ưu H1 H2 Cách 2

Chèn đoạn này vào sau: <div class='header-menu'>


 <!-- H1 H2 -->
<h2><span style='display: none;'>Documentation</span></h2>
<h2><span style='display: none;'>Chơi Blog</span></h2>



    <b:if cond='data:blog.pageType == &quot;index&quot;'>
<h1 itemprop='name'>
<a expr:href='data:blog.homepageUrl' itemprop='url'>
<img expr:alt='data:title' expr:id='data:widget.instanceId + &quot;_headerimg&quot;' expr:src='data:sourceUrl' expr:style='&quot;height:&quot; + data:height + &quot;width:&quot; + data:width + &quot;display: block&quot;'/><span style='display: none;'><data:blog.title/></span></a></h1>
<b:else/>
<h3 itemprop='name'>
<a expr:href='data:blog.homepageUrl' itemprop='url'>
<img expr:alt='data:title' expr:id='data:widget.instanceId + &quot;_headerimg&quot;' expr:src='data:sourceUrl' expr:style='&quot;height:&quot; + data:height + &quot;width:&quot; + data:width + &quot;display: block&quot;'/><span style='display: none;'><data:blog.title/></span></a></h3>
</b:if>

 <!--KT H1 H2 -->