JSFiddle - React, Tailwind, and code Playground

by Nicolas PUJOL

HTML

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<ul class="drop-menu">
    <li> <span id="options" class="glyphicon glyphicon-cog"></span>

        <div class="arrow arrow-top"></div>
        <ul id="optionsMenu">
            <li>Link 1</li>
            <li>Link 2</li>
            <li>Link 3</li>
        </ul>
    </li>
</ul>

CSS

body {
    background-color:grey
}
.drop-menu > li {
    position: relative;
}
.drop-menu li {
    list-style-type: none;
}
.glyphicon {
    cursor: pointer;
    font-size: 21px;
    margin: 18px 10px 0;
}
.drop-menu li ul {
    padding: 0;
    position: absolute;
}
.drop-menu ul {
    /*left: -65px;*/
}
.drop-menu ul {
    display: none;
    background-color:#fff;
}
.drop-menu ul li {
    padding: 2px 10px;
    width: 100px;
}
.drop-menu ul li:hover {
    background-color: lightgrey;
    cursor: pointer;
}
/*.drop-menu ul::before {
    border: medium solid transparent;
    bottom: 100%;
    content:" ";
    height: 0;
    position: absolute;
    right: 0;
    width: 0;
    border-color: rgba(255, 255, 255, 0);
    border-bottom-color: #ffffff;
    border-width: 5px;
}*/
 .drop-menu .arrow {
    display:none;
}
.arrow::before {
    border: medium solid transparent;
    content:" ";
    height: 0;
    position: absolute;
    width: 0;
    border-color: rgba(255, 255, 255, 0);
    border-bottom-color: #ffffff;
    border-width: 5px;
}
.arrow-top::before {
    bottom: 100%;
    right: 0;
}
.arrow {
    position: relative;
    width:100px;
}

JavaScript

$("#options").click(function (e) {
    if ($("#optionsMenu").is(":visible")) {
        $("#optionsMenu").slideUp("slow", function () {
            $(".drop-menu .arrow").hide();
        });
    } else {
        $(".drop-menu .arrow").show();
        $("#optionsMenu").slideDown("slow");
    }
});