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>
        <div id="footer">
        <footer>
            <div id="socialmedia"></div>
            <div id="QuickLinks"></div>
        </footer>
            </div>
    </form>
</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;
}

#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 {
        ...