Function to generate random positions for Divs

randBlocks.js

function randBlocks() {
  var randYellow = parseInt(Math.random() * 10) % 4
  var yellow = randYellow * 100;
  var randBlue = parseInt(Math.random() * 10) % 4
  var blue = randBlue * 100;
  var randGreen = parseInt(Math.random() * 10) % 4
  var green = randGreen * 100;

  opponentPos = [yellow, blue, green];

  $(".opponent-1").css("left", yellow);
  $(".opponent-2").css("left", blue);
  $(".opponent-3").css("left", green);
}