Div以5px边距为中心 - 左，右，上和下

Question

I want to make a div that is centered (horizontally and vertically). It should change size with the screen, but have 5 pixel margins all around.

Answer 1

#thediv {
    position: absolute;
    top: 10px;
    right: 10px;
    bottom: 10px;
    left: 10px;
}