Add a Horizontal Dropdown Menu In Blogger

We'll see in this tutorial how to add a drop down horizontal menu at four levels (Menu and Submenus) in Blogger Blogspot.

Multiple levels to navigation menu will help you to properly organize the categories and important links from your blog. Thus, it will allow your readers to easily navigate through the blog and moving between different sections becomes more comfortable.

How to Add a Horizontal Dropdown Menu to Blogger

Go to the "Page Layout" and just below the header of your blog, click on "Add a Gadget".

In the list proposed by Blogger choose "HTML / JavaScript", paste the Below menu code in the window that opens and click "Save."
Here is the menu code to be inserted:

 <script src='http://theblogueur-menu.googlecode.com/files/TheBlogueur_Menu.js'
type='text/javascript'></script>
<style>
/* ######### Menu Horizontal Déroulant Bloggingchimp.blogspot.com ######### */  
/* ######### Menu Horizontal Déroulant à Multiple Niveaux ######### */
.ddsubmenustyle, .ddsubmenustyle div {
        /*topmost and sub DIVs, respectively*/
    font: normal 13px Verdana;
    margin: 0;
    padding: 0;
    position: absolute;
    left: 0;
    top: 0;
    list-style-type: none;
    background: white;
    border: 1px solid black;
    border-bottom-width: 0;
    visibility: hidden;
    z-index: 100;
}

.ddsubmenustyle ul {
    margin: 0;
    padding: 0;
    position: absolute;
    left: 0;
    top: 0;
    list-style-type: none;
    border: 0px none;
}

.ddsubmenustyle li a {
    display: block;
    width: 170px;
        /*width of menu (not including side paddings)*/
    color: black;
    background-color: lightyellow;
    text-decoration: none;
    padding: 4px 5px;
    border-bottom: 1px solid black;
}

* html .ddsubmenustyle li {
        /*IE6 CSS hack*/
    display: inline-block;
    width: 170px;
        /*width of menu (include side paddings of LI A*/
}

.ddsubmenustyle li a:hover {
    background-color: black;
    color: white;
}

.downarrowpointer {
        /*CSS for "down" arrow image added to top menu items*/
    padding-left: 4px;
    border: 0;
}

.rightarrowpointer {
        /*CSS for "right" arrow image added to drop down menu items*/
    position: absolute;
    padding-top: 3px;
    left: 100px;
    border: 0;
}

.ddiframeshim {
    position: absolute;
    z-index: 500;
    background: transparent;
    border-width: 0;
    width: 0;
    height: 0;
    display: block;
}
    /* ######### Black Strip Main Menu Bar CSS ######### */
.mattblackmenu ul {
    margin: 0;
    padding: 0;
    font: bold 12px Verdana;
    list-style-type: none;
    border-bottom: 1px solid gray;
    background: #414141;
    overflow: hidden;
    width: 100%;
}

.mattblackmenu li {
    display: inline;
    margin: 0;
}

.mattblackmenu li a {
    float: left;
    display: block;
    text-decoration: none;
    margin: 0;
    padding: 6px 8px;
        /*padding inside each tab*/
    border-right: 1px solid white;
        /*right divider between tabs*/
    color: white;
    background: #414141;
}

.mattblackmenu li a:visited {
    color: white;
}

.mattblackmenu li a:hover {
    background: black;
        /*background of tabs for hover state */
}

.mattblackmenu a.selected {
    background: black;
        /*background of tab with "selected" class assigned to its LI */
}
</style>
<div id="ddtopmenubar" class="mattblackmenu">
    <ul>
        <li>
            <a href="#">LINK1</a>
        </li>
        <li>
            <a href="#" rel="ddsubmenu1">LINK2</a>
        </li>
        <li>
            <a href="#" rel="ddsubmenu2">LINK3</a>
        </li>
        <li>
            <a href="#">Link4</a>
        </li>
        <li>
            <a href="#" rel="ddsubmenu3">LINK5</a>
        </li>
    </ul>
</div>
<script type="text/javascript">
    ddlevelsmenu.setup("ddtopmenubar", "topbar") //ddlevelsmenu.setup("mainmenuid", "topbar| sidebar")
</script>
<ul class='ddsubmenustyle' id='ddsubmenu1'>
    <li>
        <a href='#'>LINK2 ITEM 1</a>
    </li>
    <li>
        <a href='#'>LINK2 ITEM 2</a>
        <ul>
            <li>
                <a href='#'>LINK2 ITEM 2.1</a>
            </li>
            <li>
                <a href='#'>LINK2 ITEM 2.2</a>
            </li>
        </ul>
    </li>
    <li>
        <a href='#'>LINK2 ITEM 3</a>
        <ul>
            <li>
                <a href='#'>LINK2 ITEM 3.1</a>
            </li>
        </ul>
    </li>
    <li>
        <a href='#'>LINK2 ITEM 4</a>
    </li>
</ul>
<ul class='ddsubmenustyle' id='ddsubmenu2'>
    <li>
        <a href='#'>LINK3 ITEM 1</a>
    </li>
    <li>
        <a href='#'>LINK3 ITEM 2</a>
    </li>
    <li>
        <a href='#'>LINK3 ITEM 3</a>
        <ul>
            <li>
                <a href='#'>LINK3 ITEM 3.1</a>
            </li>
            <li>
                <a href='#'>LINK3 ITEM 3.2</a>
            </li>
            <li>
                <a href='#'>LINK3 ITEM 3.3</a>
            </li>
            <li>
                <a href='#'>LINK3 ITEM 3.4</a>
            </li>
        </ul>
    </li>
    <li>
        <a href='#'>LINK3 ITEM 4</a>
    </li>
    <li>
        <a href='#'>LINK3 ITEM 5</a>
        <ul>
            <li>
                <a href='#'>LINK3 ITEM 5.1</a>
            </li>
            <li>
                <a href='#'>LINK3 ITEM 5.2</a>
                <ul>
                    <li>
                      &n bsp; <a href='#'>LINK3 ITEM 5.2 1</a>
                    </li>
                    <li>
                      &n bsp; <a href='#'>LINK3 ITEM 5.2 2</a>
                    </li>
                    <li>
                      &n bsp; <a href='#'>LINK3 ITEM 5.2 3</a>
                    </li>
                </ul>
            </li>
        </ul>
    </li>
    <li>
        <a href='#'>LINK3 ITEM 6</a>
    </li>
</ul>
<ul class='ddsubmenustyle' id='ddsubmenu3'>
    <li>
        <a href='#'>LINK5 ITEM 1</a>
    </li>
    <li>
        <a href='#'>LINK5 ITEM 2</a>
    </li>
    <li>
        <a href='#'>LINK5 ITEM 3</a>
    </li>
    <li>
        <a href='#'>LINK5 ITEM 4</a>
    </li>
    <li>
        <a href='#'>LINK5 ITEM 5</a>
    </li>
</ul> 

How to Customize the Navigation Menu

To change the background color, just change background: #414141;
Replace any signs # with your own links.
Replace LINKS Item with the titles links.
To create a submenu within a menu, simply add the "rel" attribute as shown in the above code: rel="ddsubmenu1"" and change the number of the menu accordingly.