CSS と JavaScript を使用して複数のオブジェクトを円を中心に回転させるにはどうすればよいですか?

var radius = 100; // Adjust to place items closer or farther from the center
var fields = $('.item'); // Target the objects to be rotated
var container = $('#container'); // Parent div encasing the rotating objects
var width = container.width();
var height = container.height();
var angle = 0;
var step = (2 * Math.PI) / fields.length; // Calculate the angular separation between objects

fields.each(function() {
  // Calculate the coordinates for each object based on its position in the circle
  var x = Math.round(width / 2 + radius * Math.cos(angle) - $(this).width() / 2);
  var y = Math.round(height / 2 + radius * Math.sin(angle) - $(this).height() / 2);
  if (console) {
    console.log($(this).text(), x, y); // Display coordinates for debugging
  }

  $(this).css({
    left: x + 'px', // Set the left position
    top: y + 'px', // Set the top position
  });

  // Increment the angle based on the spacing between objects
  angle += step;
});

body {
  padding: 2em;
}

#container {
  width: 200px;
  height: 200px;
  margin: 10px auto;
  border: 1px solid #000;
  position: relative;
  border-radius: 50%;
  animation: spin 10s linear infinite; //  Define the animation duration and direction
}

.item {
  width: 30px;
  height: 30px;
  line-height: 30px;
  text-align: center;
  border-radius: 50%;
  position: absolute;
  background: #f00;
  animation: spin 10s linear infinite reverse; //  Reverse the animation for each object
}

@keyframes spin {
  100% {
    transform: rotate(1turn); //  Rotate the objects one full turn
  }
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>