how to postion tags fix like <p>,<div>. that could not move when i add some contents at same web page.

You can use CSS styles/properties such as position: absolute|fixed,etc.. to place certain elements on the page.

If you provide more of a specific example, a better response can be provided.

You need to refer some good tutorial on CSS for different tags like <p> and <div>. It can guide you regarding all such tags.