<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="demo">
<div class="container">
<div class="row">
<div class="col-md-12">
<div class="navbar">
<nav class="menu" style="height: 949px;">
<div class="nav-layer" style="width: 4283.46px; height: 4283.46px; margin-top: -2141.73px; margin-left: -2141.73px;"></div>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Blog</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
</ul>
</nav>
<a class="nav-toggle">
<span></span>
<span></span>
<span></span>
</a>
</div>
</div>
</div>
</div>
</div>
.demo{
background: #000;
color: #fff;
}
.navbar{
position: relative;
height: 100px;
overflow: hidden;
}
.navbar .nav-toggle{
display: block;
width: 32px;
height: 32px;
cursor: pointer;
-webkit-transform: rotate(0deg);
transform: rotate(0deg);
position: absolute;
top: 35%;
z-index: 2;
}
.navbar .nav-toggle span{
display: block;
width: 100%;
height: 4px;
border-radius: 1px;
background: #000;
position: absolute;
left: 0;
-webkit-transition: .5s ease-in-out;
transition: .5s ease-in-out;
}
.navbar .nav-toggle span:nth-child(1){
top: 4px;
-webkit-transform-origin: left center;
transform-origin: left center;
}
.navbar .nav-toggle span:nth-child(2){
top: 14px;
-webkit-transform-origin: left center;
transform-origin: left center;
}
.navbar .nav-toggle span:nth-child(3){
top: 24px;
-webkit-transform-origin: left center;
transform-origin: left center;
}
.navbar .nav-toggle.open span:nth-child(1){
-webkit-transform: rotate(45deg);
transform: rotate(45deg);
top: 3px;
left: 4px;
}
.navbar .nav-toggle.open span:nth-child(2){
width: 0;
opacity: 0;
}
.navbar .nav-toggle.open span:nth-child(3){
-webkit-transform: rotate(-45deg);
transform: rotate(-45deg);
top: 25px;
left: 4px;
}
.navbar .nav-layer{
position: absolute;
top: 16px;
left: 16px;
z-index: -1;
background: rgba(0, 0, 0, 0.8);
border-radius: 50%;
-webkit-transition: 1s;
transition: 1s;
-webkit-transform: scale3d(0, 0, 0);
transform: scale3d(0, 0, 0);
}
.navbar .nav-layer.open{
-webkit-transform: scale3d(1, 1, 1);
transform: scale3d(1, 1, 1);
}
.navbar .menu{
width: 100%;
position: fixed;
left: 0;
top: 0;
-webkit-transition: ease-in-out 0.25s;
transition: ease-in-out 0.25s;
-webkit-transition-delay: 0s;
transition-delay: 0s;
visibility: hidden;
opacity: 0;
}
.navbar .menu ul{
list-style: none;
}
.navbar .menu a{
color: white;
text-decoration: none;
}
.navbar .menu.open{
visibility: visible;
opacity: 1;
-webkit-transition: ease-in-out 0.5s;
transition: ease-in-out 0.5s;
-webkit-transition-delay: 0.25s;
transition-delay: 0.25s;
z-index: 2;
}
.navbar .nav-layer{
background: -webkit-linear-gradient(to left, #3494e6, #ec6ead);
background: linear-gradient(to left, #3494e6, #ec6ead);
}
.navbar .nav-toggle span{
background-color: #fff;
}
.navbar .menu{
display: -webkit-box;
display: -ms-flexbox;
display: flex;
-webkit-box-align: center;
-ms-flex-align: center;
align-items: center;
-webkit-box-pack: center;
-ms-flex-pack: center;
justify-content: center;
color: #fff;
font-family: sans-serif;
font-size: 10vh;
}
.navbar .menu li:hover{
list-style: disc;
}
$(document).ready(function(){
function resizeNav() {
$(".menu").css({"height": window.innerHeight});
var radius = Math.sqrt(Math.pow(window.innerHeight, 2) + Math.pow(window.innerWidth, 2));
var diameter = radius * 2;
$(".nav-layer").width(diameter);
$(".nav-layer").height(diameter);
$(".nav-layer").css({"margin-top": -radius, "margin-left": -radius});
}
$(".nav-toggle").click(function() {
$(".nav-toggle, .nav-layer, .menu").toggleClass("open");
});
$(window).resize(resizeNav);
resizeNav();
});
