JSFiddle - React, Tailwind, and code Playground
HTML
<div>bla</div><div>aaa</div>
<div>aa bla </div>
CSS
span {background:red;}
JavaScript
Slick.definePseudo('contains-text',function(paramater){
return this.innerHTML.test(new RegExp(paramater.escapeRegExp()));
});
console.log($$('div:contains-text(bla)'))