Cannot Position Correctly with HTML

Question

Basically I want the image to fall down the screen all the way through the right side of the window and I tried it like this (see snippet below)

#falling2 {
  position: absolute;
  top: 0;
  right: 0;
  z-index: -2;
}

<marquee id="falling2" height="100%" direction=down scrollamount="20">
  <img src="http://via.placeholder.com/50x50">
</marquee>

However, it stays glued to the left side for some reason.

I tried solutions from here on stack overflow but they did not seem to solve my problem.

Answer 1

#falling2 {
    position: absolute;
    left: 0;
    z-index: -2;
    text-align: right;
}

<marquee id="falling2" height="100%" direction=down scrollamount="20">
    <img src="http://via.placeholder.com/50x50">
</marquee>