Question

i have a div,

it’s width is 200px ,height is 150px,

i want the style of div’s position is fixed

To make it centered horizontally and vertically centered

Answer 1

Try this:

div{
    position:fixed;
    margin:auto;
    left:0; right:0; top:0; bottom:0;
    width:200px; height:150px;
}