Multi selection drop down menu

Question

I have a problem in some Html and CSS code that i want to do multi selection drop down menu but i face a problem.

what i want to do is something like that :

and what i have done so far is

and here is my Html code :

<div class="btn-group">
    <button type="button" class="multiselect dropdown-toggle btn btn-default"
            data-toggle="dropdown" title="Columns">
        Columns
        <b class="caret">
        </b>
    </button>
    <ul class="dropdown-menu">
        <li>
            <label class="checkbox">

                <input type="checkbox" name="multiselect" value="cheese">Cheese</input>

            </label>
        </li>
        <li>
            <label class="checkbox">

                <input type="checkbox" name="multiselect" value="tomatoes">Tomatoes</input>

            </label>
        </li>
        <li>
            <label class="checkbox">

                <input type="checkbox" name="multiselect" value="mozarella">Mozzarella</input>

            </label>
        </li>
        <li>
            <label class="checkbox">

                <input type="checkbox" name="multiselect" value="mushrooms">Mushrooms</input>

            </label>
        </li>
        <li>
            <label class="checkbox">

                <input type="checkbox" name="multiselect" value="pepperoni">Pepperoni</input>

            </label>

        </li>
        <li>
            <label class="checkbox">

                <input type="checkbox" name="multiselect" value="onions">Onions</input>

            </label>
        </li>
    </ul>
</div>

and my css code :

   ul.dropdown-menu {
    height: auto;
    width: auto;
}

ul.dropdown-menu li {
    height: auto;
    width: auto;

}
ul.dropdown-menu li label {
    display: block;
    padding-left: 40px;
}

My problem is that when i choose any check box input the block disappear and i should open it again to select values !.

i need some help please

Answer 1

You can try like this

$(document).on('click', '.dropdown-menu', function (e) {
  e.stopPropagation(); // it will not propagate the action to parent for closing
});