JSFiddle - React, Tailwind, and code Playground

CSS

body{
	padding:0;
	margin:0;
	font-family: Arial, sans-serif;
}

.header-two-bars{
	font:13px Arial, Helvetica, sans-serif;
}

.header-two-bars .header-limiter{
	max-width: 1200px;
	text-align: center;
	margin: 0 auto;
}

/* Logo */

.header-two-bars h1{
	float: left;
	font: normal 35px Cookie, Calibri, Helvetica, sans-serif;
	line-height: 40px;
	margin: 0;
}

.header-two-bars h1 span {
	color: #5383d3;
}

/* The first bar */

.header-two-bars .header-first-bar{
	background-color:#292c2f;
	box-shadow:0 1px 1px #ccc;
	padding: 20px 40px;
	height: 80px;
	color: #ffffff;
	box-sizing: border-box;
}

.header-two-bars .header-first-bar a {
	color: #ffffff;
	text-decoration: none;
}
.member-area-buttons {
	float: right;
}

.signup-button, .login-user, .login-designer {
	font-size: 13px;
	float: left;
	font-weight: bold;
	border-radius: 3px;
	background-color: #5383d3;
	color: white;
	height: 40px;
	padding: 5px 20px;
	border: 1px solid #5E6367;
	box-sizing: border-box;
	margin-right: 5px;
}

.signup-button:hover, .login-user:hover, .login-designer:hover{
	background-color:#2B5773;
}
	
.signup-button{
	padding-top: 10px;
	margin-top: 0;
	border-radius: 2px;
    background-color: #6caee0;
    color: #ffffff;
    font-weight: bold;
    box-shadow: 1px 2px 4px 0 rgba(0, 0, 0, 0.08);
    border: 0;
}
/*social-button*/
/*
.header-two-bars .header-first-bar nav i.fa {
	display: inline-block;
	width: 35px;
	height: 35px;
	cursor: pointer;
	background-color:  #33383b;
	border-radius: 2px;

	font-size: 20px;
	color: #ffffff;
	text-align: center;
	line-height: 35px;
	margin-top: 0;
	margin-right: 3px;
}
*/

/* Second Bar */

.header-two-bars .header-second-bar {
	background-color: #ffffff;
	box-shadow: 1px 3px 3px 0 rgba(0, 0, 0, 0.05);
	padding: 20px 40px;
}

.header-two-bars .header-second-bar h2 {
	margin: 0;
	float: left;
	color: #292c2f;
	font-weight: bold;
    font-style: italic;
}

.header-two-bars .header-second-bar h2 a {
	font-size: 16px;
	color:...

JavaScript

function filterArray(arr) {
return (typeof(arr) ==="number" && arr != 0 && !isNaN(arr));
}
arr = [NaN, 0, 15, false, -22, '',undefined, 47, null];
console.log(arr.filter(filterArray));