Mobile Friendly Navigation Bar - html

Question

I need help making my navigation bar mobile friendly.
I tried following a few tutorials, but none of them worked.
Here's the web site's link (for the HTML) and here's the link to the CSS code.
I've tried using the #media tag, but it doesn't seem to apply to any of the content inside of the #media tag.
Here's the Media query for the CSS code:
```#media screen and (min-width: 800px) {
.nav-toggle-label {
display: none;
}
header {
z-index: 999;
width: 100%;
right: 0%;
top: 0%;
position: fixed;
}
.logo {
margin: 0;
color: silver;
list-style: none;
padding-top: 15;
}
.nav {
text-transform: uppercase;
font-size: 1.2rem;
background: var(--background);
}
.nav::after {
content: "";
display: table;
clear: both;
}
.nav-main {
float: right;
list-style: none;
}
.nav-main-item {
display: inline-block;
width: 10rem;
position: relative;
}
.nav-main a {
text-align: center;
padding: 1rem;
color: white;
text-decoration: none;
display: block;
}
.nav-main-item a:hover {
background-color: silver;
}
.nav-main-item:hover > .navi-main-item {
display: inline-block;
margin: 0;
}
.navi-main-item {
display: none;
position: absolute;
width: 100%;
top: 100%;
z-index: -1;
background: var(--background);
box-shadow: 0px 5px 10px rgba(0, 0, 0, 0.8);
}
.Discord {
padding-left: 72%;
margin-bottom: 80px;
}
.gif-Destiny {
width: 200px;
float: right;
color: white;
text-shadow: 2px 2px black;
}
.Zachary {
color: white;
text-decoration: none;
text-shadow: 2px 2px black;
}
.introduction {
color: white;
text-shadow: 2px 2px black;
}
.footer {
background-color: #1F2E4B;
color: white;
text-align: center;
font-size: 20px;
float: center;
margin-top: 12.5%;
}
.CbZD{
color: #00FFFF;
font-size: 30px;
}
}```

Answer 1

Have you tried Boostrap. It will give you a Headstart.
visit https://getbootstrap.com/docs/4.0/components/navbar/