Basic SEO 2 : Add Meta Keywords and Description

Some blogger expert have written tutorials about how to add meta keywords and description. It is very easy, you need to add this code after title tag above or before <b:skin><![CDATA[/*\
Example,

<meta name="description" content="Seo Tips For Blogger Platform" />
<meta name="keywords" content="seo tip, blogger, blogspot, seo website, seo guide" />

But, this code add same meta keywords & description to all posts. It is not good because you will find a warning at Google Webmaster Tools because duplicate meta keywords & description are detected. So, it is better if you only add meta keywords & description to the homepage. For example, you can add this code,

<b:if cond='data:blog.url == data:blog.homepageUrl'>
<meta name="description" content="Seo Tips For Blogger Platform" />
<meta name="keywords" content="seo tip, blogger, blogspot, seo website, seo guide" />
</b:if>