JSFiddle - React, Tailwind, and code Playground

HTML

<div class="window">
    <div class="bar">
        <nav role="window">
            <a href="#close">Close</a>
            <a href="#minimize">Minimize</a>
            <a href="#maximize">Maximize</a>
        </nav>
    </div>
</div>

CSS

body {
    background: url(http://cl.ly/BHEM/img.jpg) center center;
    background-size: cover;
}


.bar {
    background: -webkit-linear-gradient(#eee, #ddd 24px, #555 24px, #fff 25px, #f0f0f0);
    height: 300px;
    margin: 100px;
    border-radius: 6px;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.6), 0 2px 15px 2px rgba(0,0,0,.3), 0 0 0 1px rgba(0,0,0,.2);
    padding: 3px 5px;
}

nav[role=window] a {
    display: inline-block;
    margin: 3px 2px;
    width: 12px;
    height: 12px;
    border-radius: 100%;
    background: #f36;
    box-shadow: inset 0 0 1px 1px rgba(0,0,0,.4), 0 1px 1px rgbA(255,255,255,.6);
    text-indent: -9999px;
    position: relative;
}

nav[role=window] a:after {
    content: '';
    display: block;
    position: absolute;
    top: 2px;
    left: 1px;
    bottom: 1px;
    right: 1px;
    border-radius: 100%;
    background: -webkit-linear-gradient(#fff, rgba(255,255,255,.3) 1px, rgba(255,255,255,0) 50%, rgba(255,255,255,.5));
}

nav[role=window] a[href='#close'] {
    background: hsl(0,98%,65%);
}

nav[role=window] a[href='#minimize'] {
    background: hsl(36,100%,68%);
}

nav[role=window] a[href='#maximize'] {
    background: hsl(120,60%,45%);
}

JavaScript

$(function() {
    $('.window').draggable(); 
});