JSFiddle - React, Tailwind, and code Playground

CSS

div { height: 50px; background: cornflowerblue; }

JavaScript

window.m = $("<div />").appendTo("body"); 
console.log(m.css("overflow"));
m.slideUp(); 
console.log(m.css("overflow")); 
m.slideDown(function(){
      console.log(m.css("overflow"));
});