How can I Add sub menus to dropdown menus? - html

Question

I am having extreme dificulties to add a sub-menu to my dropdown, but I am not a pro on css. I would like to put a submenu on the part it says "10º ano" and "11º ano" in the dropdown "projects", but everything I do doesn't work ! How can I put submenus and open on the right side when cursor is placed ?
---------------------------------------Here is the HTML -------------------------
<div class="menu-wrap">
<nav class="menu">
<ul class="clearfix">
<li>Sobre mim</li>
<li>Sobre o curso</li>
<li>
Projectos <span class="arrow">▼</span>
<ul class="sub-menu">
<li>10∘ Ano <span class="arrow">▶ </span> </li>
</li>
<li>11∘ Ano <span class="arrow">▶ </span>
<ul>
</ul>
</li>
</li>
</ul>
</li>
<li>Contactos</li>
</ul>
</nav>
</div>
--------------------------------------------------and here is css ----------------------------------
<style>
<!-- cor rosa #be5b70 -->
.clearfix:after {
display:block;
clear:both;
}
/*----- Menu Outline -----*/
.menu-wrap {
width:100%;
box-shadow:0px 1px 3px rgba(0,0,0,0.2);
background:#3e3436;
}
.menu {
width:1000px;
margin:0px auto;
}
.menu li {
margin:0px;
list-style:none;
font-family:'Ek Mukta';
}
.menu a {
transition:all linear 0.15s;
color:#919191;
}
.menu li:hover > a, .menu .current-item > a {
text-decoration:none;
color:#be5b70;
}
.menu .arrow {
font-size:11px;
line-height:0%;
}
/*----- Top Level -----*/
.menu > ul > li {
float:left;
display:inline-block;
position:relative;
font-size:19px;
}
.menu > ul > li > a {
padding:10px 40px;
display:inline-block;
text-shadow:0px 1px 0px rgba(0,0,0,0.4);
}
.menu > ul > li:hover > a, .menu > ul > .current-item > a {
background:#3e3436;
border-radius: 10px;
}
/*----- Bottom Level -----*/
.menu li:hover .sub-menu {
z-index:1;
opacity:1;
}
.sub-menu {
width:130%;
text-align: center;
padding:5px 0px;
position:absolute;
top:100%;
left:0px;
z-index:-1;
opacity:0;
transition:opacity linear 0.15s;
box-shadow:0px 2px 3px rgba(0,0,0,0.2);
background:#2e2728;
border-radius: 10px;
}
.sub-menu li {
display:block;
font-size:16px;
}
.sub-menu li a {
padding:10px 7px;
display:block;
}
.sub-menu li a:hover, .sub-menu .current-item a {
background:#3e3436;
border-radius: 10px;
}
.sub-menu li:hover > a, .menu .current-item > a {
text-decoration: none;
color:#E68268;
<!-- lalalalalalal separador-->
li.sub-menu li {
display:none;
position: absolute; left: 100%; top:0;}
li.sub-menu:hover li{
display: block;}
</style>

Answer 1

<!-- cor rosa #be5b70 --> .clearfix:after {
display:block;
clear:both;
}
/*----- Menu Outline -----*/
.menu-wrap {
width:100%;
box-shadow:0px 1px 3px rgba(0, 0, 0, 0.2);
background:#3e3436;
}
.menu {
width:1000px;
margin:0px auto;
}
.menu li {
margin:0px;
list-style:none;
font-family:'Ek Mukta';
}
.menu a {
transition:all linear 0.15s;
color:#919191;
}
.menu li:hover > a, .menu .current-item > a {
text-decoration:none;
color:#be5b70;
}
.menu .arrow {
font-size:11px;
line-height:0%;
}
/*----- Top Level -----*/
.menu > ul > li {
float:left;
display:inline-block;
position:relative;
font-size:19px;
}
.menu > ul > li > a {
padding:10px 40px;
display:inline-block;
text-shadow:0px 1px 0px rgba(0, 0, 0, 0.4);
}
.menu > ul > li:hover > a, .menu > ul > .current-item > a {
background:#3e3436;
border-radius: 10px;
}
/*----- Bottom Level -----*/
.menu li:hover .sub-menu {
z-index:1;
opacity:1;
}
.sub-menu {
width:130%;
text-align: center;
padding:5px 0px;
position:absolute;
top:100%;
left:0px;
z-index: -1;
opacity:0;
transition:opacity linear 0.15s;
box-shadow:0px 2px 3px rgba(0, 0, 0, 0.2);
background:#2e2728;
border-radius: 10px;
}
.sub-menu li {
display:block;
font-size:16px;
position: relative;
}
.sub-menu li a {
padding:10px 7px;
display:block;
}
.sub-menu li a:hover, .sub-menu .current-item a {
background:#3e3436;
border-radius: 10px;
}
.sub-menu li:hover a, .menu .current-item a {
text-decoration: none;
color:#E68268;
}
/* li.sub-menu li {
display:none;
position: absolute;
left: 100%;
top:0;
}
li.sub-menu:hover li {
display: block;
}*/
.sub-menu li ul {
display: none;
}
.sub-menu li:hover ul {
display: block;
width: 100%;
position: absolute;
left: 100%;
top: 0;
text-align: center;
padding:5px 0px;
transition:opacity linear 0.15s;
box-shadow:0px 2px 3px rgba(0, 0, 0, 0.2);
background:#2e2728;
border-radius: 10px;
}
<div class="menu-wrap">
<nav class="menu">
<ul class="clearfix">
<li>Sobre mim</li>
<li>Sobre o curso</li>
<li><a href="#">
Projectos <span class="arrow">▼</span></a>
<ul class="sub-menu">
<li>10∘ Ano <span class="arrow">▶ </span>
<ul>
<li>1Ano </li>
<li>1Ano </li>
</ul>
</li>
<li>11∘ Ano <span class="arrow">▶ </span>
<ul>
<li>1Ano </li>
<li>1Ano </li>
</ul>
</li>
</ul>
</li>
<li>Contactos
</li>
</ul>
</nav>
</div>