JSFiddle - React, Tailwind, and code Playground

HTML

<div class="box">
  <div class="button">Наведи на меня</div>
</div>

CSS

.box {
  display: flex;
  justify-content: center;
  align-items: center;
  width:452px;
  height: 358px;
}

.button {
  padding: 10px;
  background: #ddd;
  cursor: pointer;
}

JavaScript

var $button = $('.button');

var offset = $.extend($button.offset(), {
	width : $button.outerWidth(),
  height : $button.outerHeight()
});

$('body').mousemove(function(e){
	var x = e.pageX;
  var y = e.pageY;
  
  if((x >= offset.left && x <= offset.left + offset.width) && (y >= offset.top && y <= offset.top + offset.height)) {
  console.log('X', x, offset.left, offset.left + offset.width);
  console.log('Y', y, offset.top, offset.top + offset.width);
  }
});