Modify CSS dropdown menu to add sub-menu option to it

Question

Good day to all!

I need help to modify a CSS navigation menu with dropdowns to add sub-menu to it.

For example, I have menu options "You" -> "Plan". I need to add a sub-menu into "Plan", so when user hovers the cursor over "Plan", a sub-menu with other options appears - just like when he hovers over "You" option.

HTML:

<nav>
        <ul>
            <li><a href="#">View</a></li>
            <li class="drop">
                <a href="#">You</a>

                <div class="dropdownContain">
                    <div class="dropOut">
                        <div class="triangle"></div>
                        <ul>
                            <li>Plan</li>
                            <li>Account Settings</li>
                            <li>Switch Account</li>
                            <li>Sign Out</li>
                        </ul>
                    </div>
                </div>

            </li>
            <li><a href="#">Help</a></li>
        </ul>
</nav>

CSS:

body {
    text-align: center;
    background: #e0e0e0;
    padding-bottom: 200px;
}

a {
    text-decoration: none;
}

/*---------- Wrapper --------------------*/

nav {
    width: 100%;
    height: 80px;
    background: #222;
}

ul {
    text-align: center;
}

ul li {
    font: 13px Verdana, 'Lucida Grande';
    cursor: pointer;
    -webkit-transition: padding .05s linear;
    -moz-transition: padding .05s linear;
    -ms-transition: padding .05s linear;
    -o-transition: padding .05s linear;
    transition: padding .05s linear;
}
ul li.drop {
    position: relative;
}
ul > li {
    display: inline-block;
}
ul li a {
    line-height: 80px;
    padding: 0 20px;
    height: 80px;
    color: #777;
    -webkit-transition: all .1s ease-out;
    -moz-transition: all .1s ease-out;
    -ms-transition: all .1s ease-out;
    -o-transition: all .1s ease-out;
    transition: all .1s ease-out;
}
ul li a:hover {
    color: #eee;
}

.dropOut .triangle {
    width: 0;
    height: 0;
    position: absolute;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid white;
    top: -8px;
    left: 50%;
    margin-left: -8px;
}
.dropdownContain {
    width: 160px;
    position: absolute;
    z-index: 2;
    left: 50%;
    margin-left: -80px; /* half of width */
    top: -400px;
}
.dropOut {
    width: 160px;
    background: white;
    float: left;
    position: relative;
    margin-top: 0px;
    opacity: 0;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    -webkit-box-shadow: 0 1px 6px rgba(0,0,0,.15);
    -moz-box-shadow: 0 1px 6px rgba(0,0,0,.15);
    box-shadow: 0 1px 6px rgba(0,0,0,.15);
    -webkit-transition: all .1s ease-out;
    -moz-transition: all .1s ease-out;
    -ms-transition: all .1s ease-out;
    -o-transition: all .1s ease-out;
    transition: all .1s ease-out;
}

.dropOut ul {
    float: left;
    padding: 10px 0;
}
.dropOut ul li {
    text-align: left;
    float: left;
    width: 125px;
    padding: 12px 0 10px 15px;
    margin: 0px 10px;
    color: #777;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    -webkit-transition: background .1s ease-out;
    -moz-transition: background .1s ease-out;
    -ms-transition: background .1s ease-out;
    -o-transition: background .1s ease-out;
    transition: background .1s ease-out;
}

.dropOut ul li:hover {
    background: #f6f6f6;
}

ul li:hover a { color: white; }
ul li:hover .dropdownContain { top: 65px; }
ul li:hover .underline { border-bottom-color: #777; }
ul li:hover .dropOut { opacity: 1; margin-top: 8px; }

Any help would be appreciated!

Answer 1

You just need to add another ul for your subnav set to position:absolute and display: none and then show it when you hover over .dropOut ul li

.subnav{
   display:none;
   background: black;
   position: absolute;
   left: 100%;
   top: 0;
}

.dropOut ul li:hover .subnav{
   display: block;
}

Just be sure to set .dropOut ul li to position: relative so that it will contain your subnav:

.dropOut ul li {
   position: relative; //add
   text-align: left;
   float: left;
   width: 125px;
   ....

HTML

<div class="dropdownContain">
    <div class="dropOut">
        <div class="triangle"></div>
        <ul>
            <li>Plan
               <ul class="subnav">
                   <li>menu 1</li>
                   <li>menu 1</li>
                   <li>menu 1</li>
               </ul>
            </li>
            <li>Account Settings</li>
            <li>Switch Account</li>
            <li>Sign Out</li>
        </ul>
    </div>
</div>

FIDDLE

Answer 2

You shouldn't use opacity to do this use display instead i have did this using opacity but that leaves some space use display property to avoid this http://jsfiddle.net/k2rjkdxy/ This one with display http://jsfiddle.net/k2rjkdxy/1/

 body { text-align: center; background: #e0e0e0; padding-bottom: 200px; } a { text-decoration: none; } /*---------- Wrapper --------------------*/ nav { width: 100%; height: 80px; background: #222; } ul { text-align: center; } ul li { font: 13px Verdana, 'Lucida Grande'; cursor: pointer; -webkit-transition: padding .05s linear; -moz-transition: padding .05s linear; -ms-transition: padding .05s linear; -o-transition: padding .05s linear; transition: padding .05s linear; } ul li.drop { position: relative; } ul > li { display: inline-block; } ul li a { line-height: 80px; padding: 0 20px; height: 80px; color: #777; -webkit-transition: all .1s ease-out; -moz-transition: all .1s ease-out; -ms-transition: all .1s ease-out; -o-transition: all .1s ease-out; transition: all .1s ease-out; } ul li a:hover { color: #eee; } .dropOut .triangle { width: 0; height: 0; position: absolute; border-left: 8px solid transparent; border-right: 8px solid transparent; border-bottom: 8px solid white; top: -8px; left: 50%; margin-left: -8px; } .dropdownContain { width: 160px; position: absolute; z-index: 2; left: 50%; margin-left: -80px; /* half of width */ top: -400px; } .dropOut { width: 160px; background: white; float: left; position: relative; margin-top: 0px; opacity: 0; -webkit-border-radius: 4px; -moz-border-radius: 4px; border-radius: 4px; -webkit-box-shadow: 0 1px 6px rgba(0,0,0,.15); -moz-box-shadow: 0 1px 6px rgba(0,0,0,.15); box-shadow: 0 1px 6px rgba(0,0,0,.15); -webkit-transition: all .1s ease-out; -moz-transition: all .1s ease-out; -ms-transition: all .1s ease-out; -o-transition: all .1s ease-out; transition: all .1s ease-out; } .dropOut ul { float: left; padding: 10px 0; } .dropOut ul li { text-align: left; float: left; width: 125px; padding: 12px 0 10px 15px; margin: 0px 10px; color: #777; -webkit-border-radius: 4px; -moz-border-radius: 4px; border-radius: 4px; -webkit-transition: background .1s ease-out; -moz-transition: background .1s ease-out; -ms-transition: background .1s ease-out; -o-transition: background .1s ease-out; transition: background .1s ease-out; } .dropOut ul li:hover { background: #f6f6f6; } ul li:hover a { color: white; } ul li:hover .dropdownContain { top: 65px; } ul li:hover .underline { border-bottom-color: #777; } ul li:hover .dropOut { opacity: 1; margin-top: 8px; } .d{ opacity:0; } ul li ul li:hover .d{ opacity:1; } 

 <nav> <ul> <li><a href="#">View</a></li> <li class="drop"> <a href="#">You</a> <div class="dropdownContain"> <div class="dropOut"> <div class="triangle"></div> <ul> <li>Plan <ul class="d"><li>text</li> <li>text</li> <li>text</li> </ul></li> <li>Account Settings</li> <li>Switch Account</li> <li>Sign Out</li> </ul> </div> </div> </li> <li><a href="#">Help</a></li> </ 

This one with display property

 body { text-align: center; background: #e0e0e0; padding-bottom: 200px; } a { text-decoration: none; } /*---------- Wrapper --------------------*/ nav { width: 100%; height: 80px; background: #222; } ul { text-align: center; } ul li { font: 13px Verdana, 'Lucida Grande'; cursor: pointer; -webkit-transition: padding .05s linear; -moz-transition: padding .05s linear; -ms-transition: padding .05s linear; -o-transition: padding .05s linear; transition: padding .05s linear; } ul li.drop { position: relative; } ul > li { display: inline-block; } ul li a { line-height: 80px; padding: 0 20px; height: 80px; color: #777; -webkit-transition: all .1s ease-out; -moz-transition: all .1s ease-out; -ms-transition: all .1s ease-out; -o-transition: all .1s ease-out; transition: all .1s ease-out; } ul li a:hover { color: #eee; } .dropOut .triangle { width: 0; height: 0; position: absolute; border-left: 8px solid transparent; border-right: 8px solid transparent; border-bottom: 8px solid white; top: -8px; left: 50%; margin-left: -8px; } .dropdownContain { width: 160px; position: absolute; z-index: 2; left: 50%; margin-left: -80px; /* half of width */ top: -400px; } .dropOut { width: 160px; background: white; float: left; position: relative; margin-top: 0px; display:none; -webkit-border-radius: 4px; -moz-border-radius: 4px; border-radius: 4px; -webkit-box-shadow: 0 1px 6px rgba(0,0,0,.15); -moz-box-shadow: 0 1px 6px rgba(0,0,0,.15); box-shadow: 0 1px 6px rgba(0,0,0,.15); -webkit-transition: all .1s ease-out; -moz-transition: all .1s ease-out; -ms-transition: all .1s ease-out; -o-transition: all .1s ease-out; transition: all .1s ease-out; } .dropOut ul { float: left; padding: 10px 0; } .dropOut ul li { text-align: left; float: left; width: 125px; padding: 12px 0 10px 15px; margin: 0px 10px; color: #777; -webkit-border-radius: 4px; -moz-border-radius: 4px; border-radius: 4px; -webkit-transition: background .1s ease-out; -moz-transition: background .1s ease-out; -ms-transition: background .1s ease-out; -o-transition: background .1s ease-out; transition: background .1s ease-out; } .dropOut ul li:hover { background: #f6f6f6; } ul li:hover a { color: white; } ul li:hover .dropdownContain { top: 65px; } ul li:hover .underline { border-bottom-color: #777; } ul li:hover .dropOut { display:block; margin-top: 8px; } .d{ display:none; } ul li ul li:hover .d{ background:skyblue; position:absolute; display:block; } 

 <nav> <ul> <li><a href="#">View</a></li> <li class="drop"> <a href="#">You</a> <div class="dropdownContain"> <div class="dropOut"> <div class="triangle"></div> <ul> <li>Plan <ul class="d"><li>text</li> <li>text</li> <li>text</li> </ul></li> <li>Account Settings</li> <li>Switch Account</li> <li>Sign Out</li> </ul> </div> </div> </li> <li><a href="#">Help</a></li> </