JSFiddle - React, Tailwind, and code Playground

HTML

<div id="banner_wrap">
    <div id="banner">
        <img src="banner.jpg" width="900" height="350" alt="efghn" />
        <div id="banner_menu">
            <div class="banner_vert_menu">
                <ul class="banner_nav">
                    <li> <a href="#">Airlines</a>

                        <div class="overlays">
                            <div class="col_3">
                                <ul id="v_menu">
                                    <li> <a href="#">Destinations</a>
                                    </li>
                                    <li> <a href="#">Group Travel</a>
                                    </li>
                                    <li> <a href="#">Family Travel</a>
                                    </li>
                                    <li> <a href="#">Corporate Travel</a>
                                    </li>
                                    <li> <a href="#">Private Jet Travel</a>
                                    </li>
                                    <li> <a href="#">Stopover</a>
                                    </li>
                                    <li> <a href="#">Global Explorer</a>
                                    </li>
                                    <li> <a href="#">Why Book Online?</a>
                                    </li>
                                </ul>
                            </div>
                            <div class="col_3">
                                <ul id="v_menu">
                                    <li> <a href="#">Destinations</a>
                                    </li>
                                    <li> <a href="#">Group Travel</a>
                                    </li>
                                    <li> <a href="#">Family Travel</a>
                                    </li>
                                    <li> <a href="#">Corporate Travel</a>
                                    </li>
                                    <li>...

CSS

#banner_wrap {
    margin: 20px 0 0 0;
}
#banner {
    height: auto;
    border: 1px solid #f4a76a;
    width: 900px;
    height: 350px;
    margin: auto;
    position: relative;
    z-index: 5;
    overflow: hidden;
}
#banner_menu {
    width: 260px;
    position: absolute;
    right: 20px;
    top: -15px;
    height: 344px;
    background:#EA4706;
    padding: 20px;
    color: #FFF;
}
.banner_nav {
    list-style:none;
    padding:0px;
    margin: 20px 0 0 0px;
    overflow: hidden;
}
.banner_nav > li {
    line-height: 30px;
    text-transform: uppercase;
    font-size: 1em;
    float: none;
}
.banner_nav > li > a {
    color: #FFFFFF;
    display: block;
    font-size: 0.8em;
    padding: 0 15px;
    text-decoration: none;
}
.banner_nav > li > a:hover {
    background: none;
    text-decoration: underline;
}
.banner_nav > li .overlays {
    position: absolute;
    z-index: 25;
    width: 535px;
    background-color: #fff;
    top: 15px;
    left: 0;
    border: 1px solid #e1e1e1;
    height: 318px;
    padding: 20px 20px 10px 20px;
}
.banner_nav > li .overlays .col_3 {
    width: 167px;
    margin-right: 10px;
    border-right: 1px solid #eee;
    float: left;
    height: 290px;
    line-height: 1;
    text-transform: none;
}
/*--- VERTCAL MENU ---*/
 .banner_nav > li .overlays .col_3 #v_menu {
    list-style:none;
    padding:0px;
    margin: 0px;
}
.banner_nav > li .overlays .col_3 #v_menu > li {
    line-height: 30px;
    text-transform: uppercase;
    width: 166px;
    font-size: 0.875em;
    float: none;
}
.banner_nav > li .overlays .col_3 #v_menu > li a {
    display: block;
    padding: 0 15px;
    color: #696565;
    text-decoration: none;
}
.banner_nav > li .overlays .col_3 #v_menu > li a:hover {
    color: #696565;
    background: none;
    text-decoration: underline;
}
.close_div {
    color: #000;
}

JavaScript

$(document).ready(function () {
    var bannerOverlay = $(".banner_nav > li .overlays"),
        banner_li = $(".banner_nav > li");
    bannerOverlay.hide();

    banner_li.click(function () {
        var $this = $(this),
            siblings = $this.siblings(".banner_nav > li"),
            $lefty = $this.find(".overlays");

        siblings.find(".overlays").hide(function () {
            $(this).css("left", "0");
        });

        $lefty.show(1, function () {
            $lefty.animate({
                left: -580
            });
            $(".overlays").css("opacity", "1");
        });

        $("div.close_div").click(function (e) {
            var myLIparent = $(this).parents(".overlays");
            myLIparent.css("opacity", "0");
            myLIparent.css("left", "0");
            e.stopPropagation();
        });

    });

});