JSFiddle - React, Tailwind, and code Playground

HTML

<div class="menu">
    <a href="#">Item1</a>
    <a href="#">Item2</a>
    <a href="#">Item3</a>
    <a href="#">Item4</a>
    <a href="#">Item5</a>
</div>
<div class="content">
content  
</div>

CSS

body {
    margin: 0;
    padding: 0;
    background-color: #eee;
}


.menu {
    position: fixed;
    top: 0;
    background-color: #ccc;
    height: 32px;
    width: 100%;
    text-align: center;
    font-family: calibri;
    text-transform: uppercase;
    border-bottom: 1px solid #666;
    box-shadow: 0 1px 0 #fff;
    z-index: 1;
}

.content {
    position: relative;
    margin: auto;
    top: 100px;
    background-color: #fff;
    border: 1px solid #999;
    width: 720px;
    height: 1000px;

}

a:link {
    position: relative;
    color: #444;
    text-decoration: none;
    border: 1px solid #888;
    box-shadow: 0 1px 0 #eee;
    margin: 4px;
    top: 4px;
    padding: 0 5px 0 5px;
}