Blog

<div class="sticky-list">
        <ul class="sticky-ul">
            <li>
                 <h3 class="title">Section Headline 0</h3>

                <ul>
                    <li>Content line 0</li>
                    <li>Content line 1</li>
                    <li>Content line 2</li>
                    <li>Content line 3</li>
                    <li>Content line 4</li>
                </ul>
            </li>
            <li>
                 <h3 class="title">Section Headline 1</h3>

                <ul>
                    <li>Content line 0</li>
                    <li>Content line 1</li>
                    <li>Content line 2</li>
                    <li>Content line 3</li>
                    <li>Content line 4</li>
                </ul>
            </li>
            <li>
                 <h3 class="title">Section Headline 2</h3>

                <ul>
                    <li>Content line 0</li>
                    <li>Content line 1</li>
                    <li>Content line 2</li>
                    <li>Content line 3</li>
                    <li>Content line 4</li>
                </ul>
            </li>
            <li>
                 <h3 class="title">Section Headline 3</h3>

                <ul>
                    <li>Content line 0</li>
                    <li>Content line 1</li>
                    <li>Content line 2</li>
                    <li>Content line 3</li>
                    <li>Content line 4</li>
                </ul>
            </li>
        </ul>
    </div>

ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
h3 {
    background: #fff;
    margin: 0;
}
.sticky-list {
    height: 160px;
    position: relative;
    overflow: hidden;
    width: 200px;
    margin: 20px auto;
}
.sticky-ul {
    height: 100%;
    overflow: auto;
    padding-top: 20px;
}
.sticky {
    position: absolute;
    top: 0;
}

$(".sticky-ul").each(function () {
    var cname = "sticky";
    var v = $(".title");
    var h = v.outerHeight();
    v.eq(0).addClass(cname);
    $(this).scroll(function () {
        v.each(function () {
            var t = this;

            var top_of_container = $(t).scrollTop();
            var top_of_object = $(t).position().top;


            if (top_of_container > top_of_object) {
                v.removeClass(cname).css("top", "auto");
                $(t).addClass(cname).css("top", 0);
            } else if ((top_of_container > top_of_object - h) && top_of_container - top_of_object < 0) {
                $("." + cname).css("top", top_of_object - top_of_container - h + "px")

            }


        });


    });
});

DEMO