JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapAni">
  <div id="cursor"></div>
</div>

<button id="btnStart">시작</button>

CSS

#wrapAni{position:relative;width:400px;height:200px;border:1px solid red}
#wrapAni #cursor{position:absolute;left:0;top:50%;width:30px;height:30px;nargin-top:-15px;background:red}

JavaScript

$('#btnStart').on('click', function(){
  $('#cursor').css('left', 0).stop().animate({
    'left': '370'
  }, 1000);
});