How to position the div popup dialog to the center of browser screen?

Question

I need to position div popup to the center of browser screen ( no matter what size the screen is). And I want to keep the position as absolute as I don\'t want to move the p

Answer 1

.popup-content-box{
    position:fixed;
    left: 50%;
    top: 50%;
    -ms-transform: translate(-50%,-50%);
    -moz-transform:translate(-50%,-50%);
    -webkit-transform: translate(-50%,-50%);
     transform: translate(-50%,-50%);
}