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Source Code
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<!-- This script got from www.devanswer.com -->
<style>
@import url('https://fonts.googleapis.com/css2?family=David+Libre:wght@500&display=swap');
* {
box-sizing: border-box;
font-family: 'David Libre', serif;
}
body {
background-color: #eafbff;
background-image: linear-gradient( to bottom, #eafbff 0%, #eafbff 50%, #5290f9 50%, #5290f9 100% );
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
margin: 0;
}
nav {
background-color: #fff;
padding: 20px;
width: 80px;
display: flex;
align-items: center;
justify-content: center;
border-radius: 3px;
box-shadow: 0 2px 5px rgba(0, 0, 0, 0.3);
transition: width 0.6s linear;
}
nav.active {
width: 350px;
}
nav ul {
display: flex;
list-style-type: none;
padding: 0;
margin: 0;
width: 0;
transition: width 0.6s linear;
}
nav.active ul {
width: 100%;
}
nav ul li {
transform: rotateY(0deg);
opacity: 0;
transition: transform 0.6s linear, opacity 0.6s linear;
}
nav.active ul li {
opacity: 1;
transform: rotateY(360deg);
}
nav ul a {
position: relative;
color: #000;
text-decoration: none;
margin: 0 10px;
}
.icon {
background-color: #fff;
border: 0;
cursor: pointer;
padding: 0;
position: relative;
height: 30px;
width: 30px;
}
.icon:focus {
outline: 0;
}
.icon .line {
background-color: #5290f9;
height: 2px;
width: 20px;
position: absolute;
top: 10px;
left: 5px;
transition: transform 0.6s linear;
}
.icon .line2 {
top: auto;
bottom: 10px;
}
nav.active .icon .line1 {
transform: rotate(-765deg) translateY(5.5px);
}
nav.active .icon .line2 {
transform: rotate(765deg) translateY(-5.5px);
}
</style>
</head>
<body>
<nav class="active" id="nav">
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Works</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Contact</a></li>
</ul>
<button class="icon" id="toggle">
<div class="line line1"></div>
<div class="line line2"></div>
</button>
</nav><div id="bcl"><a style="font-size:8pt;text-decoration:none;" href="http://www.devanswer.com">Developers Answer</a></div>
<script>
const toggle = document.getElementById("toggle");
const nav = document.getElementById("nav");
toggle.addEventListener("click", () => nav.classList.toggle("active"));
</script>
</body>
</html>
