Hi,
Please let me know,How can we promote a blog?

what is the relationship between SEO and SEM?

Display and align content consistently.
Render text legibly on all scales and viewports.
Keep content (text and images ) within containers.
Display and resize images as needed.
Allow users to scroll vertically (or horizontally,as in the case of responsive data tables.).

I have a question about frame set ,why frame is not working in html5,please help if you know.

Thanks in advance.

Yes,you have to code html into your server side.So html is just the foundation.However,if you don’t want t focus on html,then go flash.But even flash is wrapped by html.No html,then http server doesn’t have anything visible to show visually in response to your web browser.

From a SEO point of view does the <u> tag have any value? And if it does,how to achieve the same result with css??