JSFiddle - React, Tailwind, and code Playground
HTML
<div id="div_id"></div>
CSS
#div_id{
border:1px solid red;
padding:50px;
}
JavaScript
var flag = 0;
$('#div_id').click(function(){
if (flag == 0){
$(this).css({ 'background-color' : 'red'})
flag = 1;
} else if(flag == 1) {
$(this).css({ 'background-color' : 'blue'})
flag = 0;
}})