JSFiddle - React, Tailwind, and code Playground

by Vince Richter

HTML

<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {
  margin: 0;
  font-size: 28px;
  font-family: Arial, Helvetica, sans-serif;
  user-select: none;
}


.subhead{
    text-align: center;
    border-bottom: 2px solid #2f2f2f;
    border-top: 2px solid #2f2f2f;
    padding: 12px 0 12px 0;
    font-size: 17px;
}

*{
  box-sizing:border-box;
}

.column {
  float: left;
  width: 33.3333333333%;
  padding: 10px;
  height: 300px;
  font-size: 15px;
}
.column-1{
  float: center;
  width: 33.3333333333%;
  padding: 10px;
  height: 300px;
  font-size: 15px;
  display: inline-block;
}

.column-2{
  float: right;
  width: 33.3333333333%;
  padding: 10px;
  height: 300px;
  font-size: 15px;
  display: inline-block;
}

.row:after {
  content: "";
  display: table;
  clear: both;
}

.header {
  background-color: #f1f1f1;
  padding: 30px;
  text-align: center;
}

#navbar {
  overflow: hidden;
  background-image: #333;
}

#navbar a {
  height: 200px;
  float: center;
  display: block;
  color: #f2f2f2;
  text-align: center;
  padding: 80px 15px;
  text-decoration: none;
  font-size: 40px;
}

#navbar a:hover {
  background-image: url("https://www.seaworldofhurt.com/wp-content/uploads/2014/03/tilikum_05.jpg");
  color: black;
}

#navbar a.active {
  background-image: url("https://www.seaworldofhurt.com/wp-content/uploads/2014/03/tilikum_05.jpg");
  background-position: center;
  background-position-y: center;
  background-size: cover;
  color: white;
}

.content {
  padding: 16px;
}

.sticky {
  position: fixed;
  top: 0;
  width: 100%;
}

.sticky + .content {
  padding-top: 60px;
}

::-webkit-scrollbar {
  width: 10px;
}

/* Track */
::-webkit-scrollbar-track {
  box-shadow: inset 0 0 5px grey; 
  border-radius: 10px;
}
 
/* Handle */
::-webkit-scrollbar-thumb {
  background: linear-gradient(lightblue, aquamarine, darkblue); 
  border-radius: 10px;
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
 ...