Fixed position but relative to container

Question

I am trying to fix a div so it always sticks to the top of the screen, using:

position: fixed;
top: 0px;
right: 0px;

However,

Answer 1

I have the same issue, one of our team members gives me a solution. To allowed the div fix position and relative to other div, our solution is to use a father container wrap the fix div and scroll div.

css

.container {
  position: relative;
  flex:1;
  display:flex;
}

.fix {
  prosition:absolute;
}