JSFiddle - React, Tailwind, and code Playground

HTML

<body>
    <form id="form1" runat="server">
        <div id="headers">
            <header>
                <div id="Logo">
                    <img alt="SiteLogo" src="Images/kas.png" style="width:130px;height: 55px;" />
                </div>
                <div id="LogoText">Camphor Works</div>
                <nav>
                    <ul>
                        <li><a href="Index.aspx">HOME</a>

                        </li>
                        <li><a href="AboutUs.aspx">ABOUT US</a>

                        </li>
                        <li class='has-sub '><a href="Products.aspx">PRODUCTS</a>

                            <ul>
                                <li class='has-sub '><a href='#'>Product 1</a>

                                </li>
                                <li class='has-sub '><a href='#'>Product 2</a>

                                </li>
                            </ul>
                        </li>
                        <li><a href="Services.aspx">SERVICES</a>

                        </li>
                        <li><a href="Enquiry.aspx">ENQUIRY</a>

                        </li>
                    </ul>
                </nav>
            </header>
        </div>
        <section>
            <article id="Articleleft"></article>
            <article id="Articleright"></article>
        </section>
        
    </form>
    <div id="footer">
            <footer>
                <div id="socialmedia"></div>
                <div id="QuickLinks"></div>
            </footer>
        </div>
</body>

CSS

* {
    margin:0px;
    padding:0px;
}
html {
    margin:0px;
    padding:0px;
    height:100%;
}
body {
    margin:0px;
    padding:0px;
    height:100%;
    background: url(../Images/bg.gif) center 0 repeat;
}
form {
    min-height: 100%;
    height: 100%;
    margin: 0 auto -150px;
}
#headers {
    width:100%;
    background-color: #333;
    margin: 0px 0px 0px 0px;
}
header {
    width:1100px;
    height: 80px;
    margin:0px auto;
    padding: 0px;
}
#Logo {
    width: 130px;
    height: 55px;
    padding: 20px 0px 20px 00px;
    margin-left: 50px;
    float: left;
    display: block;
}
#LogoText {
    width: 200px;
    height: 70px;
    padding: 40px 0px 0px 0px;
    margin-left: 20px;
    display: block;
    float: left;
    font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
    color: #F55815;
    font-size: 26px;
    font-weight: bolder;
}
nav {
    padding: 0;
    margin: 0;
    float: right;
    color: #FFFFFF;
    background: #333;
    padding-top:30px;
    font-family:'Oxygen Mono', Tahoma, Arial, sans-serif;
    /*font-family: 'Times New Roman';*/
    font-size: 12pt;
}
nav ul {
    list-style-type: none;
    padding: 0px;
    margin: 0px;
    position: relative;
    z-index: 597;
    text-transform: uppercase;
}
nav li {
    list-style: none;
    margin: 0;
    padding: 0;
}
nav ul li {
    width: 130px;
    text-align: center;
    float: left;
    height: 100%;
    font-weight:normal;
}
nav ul li.hover, #cssmenu ul li:hover {
    position: relative;
    z-index: 598;
    cursor: default;
}
nav ul ul {
    visibility: hidden;
    position: absolute;
    top: 100%;
    z-index: 598;
    width: 100%;
    height: 100%;
    bottom: 0;
    margin-top: 0;
    text-transform: none;
    min-width: 190px;
}
nav ul ul li {
    float: none;
    font-weight: normal;
}
nav ul ul ul {
    top: 0;
    border-top: 0 none;
}
nav ul li:hover > ul {
    visibility: visible;
}
nav a {
    display: block;
    line-height: 1em;
    text-decoration: none;
   ...