felgall, Thanks for your answer. Sorry for bothering you again. Actually I just wanted to say that, As I know we can place an image through html or css, And also there has some tags in HTML which are available in CSS as an alternative. Such as STRONG in html , BOLD in CSS. [Both are going to make a result similar]
In these case, Which code whether html or css will I prefer to design my site through seo perspective? Once again Sorry for this question…