How to Hide any controls completely from a Page definition?

Answer:

Suppose,we want to hide Division control(div tag) from Page itself,then we have to write a CSS class for Div.
Here,we have to give position as absolute and top and left position as -9999px as shown below:-

#div_project

{

    position: absolute;

    top: -9999px;

    left: -9999px;

}

Here,#div_project is my division tag.By above CSS,we can hide any controls.