center aligning a fixed position div

Question

I\'m trying to get a div that has position:fixed center aligned on my page.

I\'ve always been able to do it with absolutely positioned divs using this \

Answer 1

A solution using flex box; fully responsive:

parent_div {
    position: fixed;
    width: 100%;
    display: flex;
    justify-content: center;
}

child_div {
    /* whatever you want */
}