Why my dropdown menu isn't appearing on hover? - css

Question

Why the dropdown menu isn't working on css hover? I've seen people do it on youtube and it looks pretty simple.
HTML
<div class ="top-bar">
<div class="row">
<img class="logo" src="Images/logo-blanco.png" alt="logo">
<div class="nav">
<ul>
<li>Inicio</li>
<li>Demos
<ul class="drop-menu">
<li>Castellano</li>
<li>Ingles</li>
<li>Videos</li>
</ul>
</li>
<li><a href="#" >Como Trabajo</a></li>
<li>Quien Soy</li>
<li>Hablan de mi</li>
<li>Contacta</li>
<li>Blog</li>
</ul>
</div>
</div>
</div>
CSS
.nav {
width: 100%;
min-width: 80%;
position: relative;
left: 15%;
top: 20px;
}
ul {
margin: 0px;
padding: 0px;
list-style: none;
}
ul li {
float: left;
width: 100px;
height: 40px;
opacity: .8;
line-height: 40px;
text-align: center;
font-size: 65%;
margin-right: 2px;
}
ul li a {
text-decoration: none;
color: white;
display: block;
}
ul li a.color {
color: black;
border-bottom: 0.5px solid rgb(80, 80, 80);
border-left: 0.5px solid rgb(80, 80, 80);
border-right: 0.5px solid rgb(80, 80, 80);
font-size: 130%;
width: 150px;
text-align: left;
padding-left: 10px;
box-shadow: 1px 1px 2px rgba(179, 176, 176, 0.5);
}
ul li ul.drop-menu {
position: relative;
top: 20px;
text-align: left;
}
.drop-menu {
display: none;
}
.drop:hover .drop-menu{
display: block;
}
I'm pretty new to this so hopefully I've included enough code. I guess perhaps something else is stopping it somewhere else?

Answer 1

That is because your css is incorrect. Your .drop-menu class isnt in the drop class, it is next to it.
I think if you change your css to this:
.drop-menu {
display: none;
}
.drop:hover + .drop-menu{
display: block;
}
It is going to work. The + operator is for selecting css neighbours. But you can also just end your a after the whole .drop-menu like this.
<li>
<a href="#" class="drop">Demos
<ul class="drop-menu">
<li>Castellano</li>
<li>Ingles</li>
<li>Videos</li>
</ul>
</a>
</li>
Then your css is correct and you dont have to change that.
EDIT: i removed the a tag in your code as it is officialy only allowed to contain inline elements, Also, i removed the top from the ul li ul.drop-menu. Only use top, left, right, bottom on absolute elements.
I also changed the hover on the submenu in the CSS. I now used the > selector, which means: get the DIRECT child of the selected parent. Docs here
.nav {
width: 100%;
min-width: 80%;
position: relative;
left: 15%;
top: 20px;
}
ul {
margin: 0px;
padding: 0px;
list-style: none;
}
ul li {
float: left;
width: 100px;
height: 40px;
opacity: .8;
line-height: 40px;
text-align: center;
font-size: 65%;
margin-right: 2px;
}
ul li a {
text-decoration: none;
color: black;
display: block;
}
ul li a.color {
color: black;
border-bottom: 0.5px solid rgb(80, 80, 80);
border-left: 0.5px solid rgb(80, 80, 80);
border-right: 0.5px solid rgb(80, 80, 80);
font-size: 130%;
width: 150px;
text-align: left;
padding-left: 10px;
box-shadow: 1px 1px 2px rgba(179, 176, 176, 0.5);
}
ul li ul.drop-menu {
position: relative;
text-align: left;
}
.drop-menu {
display: none;
}
.drop:hover > .drop-menu {
display: block;
}
<div class ="top-bar">
<div class="row">
<img class="logo" src="Images/logo-blanco.png" alt="logo">
<div class="nav">
<ul>
<li>Inicio</li>
<li class="drop">Demos
<ul class="drop-menu">
<li>Castellano</li>
<li>Ingles</li>
<li>Videos</li>
</ul>
</li>
<li><a href="#" >Como Trabajo</a></li>
<li>Quien Soy</li>
<li>Hablan de mi</li>
<li>Contacta</li>
<li>Blog</li>
</ul>
</div>
</div>
</div>