hugh
/
select2


			
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							<html>
<head>


        <style>


            .dropdown {
                background-color: green;
                border: 3px solid red;
                position: fixed;
                padding: 10px;
                left: 0;
                right: 0;
                top: 0;
                bottom: 0;
            }

            .search input {
                width: 100%;
            }

            .results {
                overflow: scroll;
                border: 1px solid blue;
            }

            .results ul {
                list-style: none;
                margin: 0;
                padding: 0;
            }

            .results li {
                border: 1px solid red;
                height: 10vh;
                height: 40px;
                margin: 3px;
                padding: 0;
            }


        </style>

        <script src="jquery-2.1.0.js"></script>
        <script>
            $(function () {

                function adjust() {
                    var height = $(".dropdown").height();
                    var searchHeight = $(".search").height();
                    var needed = height - searchHeight;
                    console.log(height, searchHeight, needed);
                    $(".results").css({maxHeight: needed});
                }


                $(".dropdown")
                        .on("scroll", function (e) {
                            e.preventDefault();
                            return false;
                        });

                $(".search input").on("blur", function() {
                    $(".dropdown").hide();
                })


                //window.setInterval(adjust, 100);

                $("#trigger").on("focus", function(e) {
                    $(".dropdown").show();
                    $(".search input").focus();
                    $("head").append('<meta name = "viewport" content = "user-scalable=no, width=device-width, initial-scale=1.0, maximium-scale=1.0, minimum-scale=1.0"/>');
                    adjust();
                });

                $("#resize").on("click", adjust);

                var a = 0;
                $(window).on("resize", function () {
                    adjust();
                });


            });

        </script>

</head>
<body>

<form>
    <p>
    <input type="text"/>
    </p>
    <p>
        <input type="text"/>
    </p>
    <p>
        <input type="text" id="trigger"/>
    </p>
    <p>
        <input type="text"/>
    </p>
</form>

<div class="dropdown" style="display:none">

    <div class="result-list">
        <div class="search">
            <a href="#">reload</a><span id="message"></span><a href="#" id="resize">resize</a>
            <input type="text"/>
        </div>
        <div class="results">
            <ul>
                <li>Result 1</li>
                <li>Result 2</li>
                <li>Result 3</li>
                <li>Result 4</li>
                <li>Result 5</li>
                <li>Result 6</li>
                <li>Result 7</li>
                <li>Result 8</li>
                <li>Result 9</li>
                <li>Result 10</li>
                <li>Result 11</li>
                <li>Result 12</li>
                <li>Result 13</li>
                <li>Result 14</li>
                <li>Result 15</li>
                <li>Result 16</li>
                <li>Result 17</li>
                <li>Result 18</li>
                <li>Result 19</li>
                <li>Result 20</li>
                <li>Result 21</li>
                <li>Result 22</li>
                <li>Result 23</li>
                <li>Result 24</li>
                <li>Result 25</li>
                <li>Result 26</li>
                <li>Result 27</li>
                <li>Result 28</li>
            </ul>

        </div>

    </div>


</div>

</body>
</html>