Vertically center ul in div

Answer 1

If you can add jQuery library you could try this,

$(document).ready(function(){

    // Remove li float
    $("#container ul li").css("float", "none");

    // Get the full height of the UL
    var ulheight = $("#container ul li")[0].scrollHeight;

    // Based on the height of the container being 50px you can position the UL accordingly
    var pushdown = (50-ulheight)/2;
    $("#container ul li").css("top", pushdown);

});