效果：
html：
<!DOCTYPE html>
<!-- Created By CodingNepal -->
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Responsive Navbar with Search Box | CodingNepal</title>
<link rel="stylesheet" href="css/style.css">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="https://kit.fontawesome.com/a076d05399.js"></script>
</head>
<body>
<nav>
<div class="menu-icon">
<span class="fas fa-bars"></span></div>
<div class="logo">
CodingNepal</div>
<div class="nav-items">
<li><a href="#">Home</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Blogs</a></li>
<li><a href="#">Contact</a></li>
<li><a href="#">Feedback</a></li>
</div>
<div class="search-icon">
<span class="fas fa-search"></span></div>
<div class="cancel-icon">
<span class="fas fa-times"></span></div>
<form action="#">
<input type="search" class="search-data" placeholder="Search" required>
<button type="submit" class="fas fa-search"></button>
</form>
</nav>
<div class="content">
<header class="space">Responsive Navbar with Search Box</header>
<div class="space text">
using HTML CSS & JavaScript</div>
</div>
<script>
const menuBtn = document.querySelector(".menu-icon span");
const searchBtn = document.querySelector(".search-icon");
const cancelBtn = document.querySelector(".cancel-icon");
const items = document.querySelector(".nav-items");
const form = document.querySelector("form");
menuBtn.onclick = ()=>{
items.classList.add("active");
menuBtn.classList.add("hide");
searchBtn.classList.add("hide");
cancelBtn.classList.add("show");
}
cancelBtn.onclick = ()=>{
items.classList.remove("active");
menuBtn.classList.remove("hide");
searchBtn.classList.remove("hide");
cancelBtn.classList.remove("show");
form.classList.remove("active");
cancelBtn.style.color = "#ff3d00";
}
searchBtn.onclick = ()=>{
form.classList.add("active");
searchBtn.classList.add("hide");
cancelBtn.classList.add("show");
}
</script>
</body>
</html>
css：
*{
margin: 0;
padding: 0;
outline: none;
box-sizing: border-box;
font-family: 'Montserrat', sans-serif;
}
body{
background: #f2f2f2;
}
nav{
background: #171c24;
display: flex;
flex-wrap: wrap;
align-items: center;
justify-content: space-between;
height: 70px;
padding: 0 100px;
}
nav .logo{
color: #fff;
font-size: 30px;
font-weight: 600;
letter-spacing: -1px;
}
nav .nav-items{
display: flex;
flex: 1;
padding: 0 0 0 40px;
}
nav .nav-items li{
list-style: none;
padding: 0 15px;
}
nav .nav-items li a{
color: #fff;
font-size: 18px;
font-weight: 500;
text-decoration: none;
}
nav .nav-items li a:hover{
color: #ff3d00;
}
nav form{
display: flex;
height: 40px;
padding: 2px;
background: #1e232b;
min-width: 18%!important;
border-radius: 2px;
border: 1px solid rgba(155,155,155,0.2);
}
nav form .search-data{
width: 100%;
height: 100%;
padding: 0 10px;
color: #fff;
font-size: 17px;
border: none;
font-weight: 500;
background: none;
}
nav form button{
padding: 0 15px;
color: #fff;
font-size: 17px;
background: #ff3d00;
border: none;
border-radius: 2px;
cursor: pointer;
}
nav form button:hover{
background: #e63600;
}
nav .menu-icon,
nav .cancel-icon,
nav .search-icon{
width: 40px;
text-align: center;
margin: 0 50px;
font-size: 18px;
color: #fff;
cursor: pointer;
display: none;
}
nav .menu-icon span,
nav .cancel-icon,
nav .search-icon{
display: none;
}
@media (max-width: 1245px) {
nav{
padding: 0 50px;
}
}
@media (max-width: 1140px){
nav{
padding: 0px;
}
nav .logo{
flex: 2;
text-align: center;
}
nav .nav-items{
position: fixed;
z-index: 99;
top: 70px;
width: 100%;
left: -100%;
height: 100%;
padding: 10px 50px 0 50px;
text-align: center;
background: #14181f;
display: inline-block;
transition: left 0.3s ease;
}
nav .nav-items.active{
left: 0px;
}
nav .nav-items li{
line-height: 40px;
margin: 30px 0;
}
nav .nav-items li a{
font-size: 20px;
}
nav form{
position: absolute;
top: 80px;
right: 50px;
opacity: 0;
pointer-events: none;
transition: top 0.3s ease, opacity 0.1s ease;
}
nav form.active{
top: 95px;
opacity: 1;
pointer-events: auto;
}
nav form:before{
position: absolute;
content: "";
top: -13px;
right: 0px;
width: 0;
height: 0;
z-index: -1;
border: 10px solid transparent;
border-bottom-color: #1e232b;
margin: -20px 0 0;
}
nav form:after{
position: absolute;
content: '';
height: 60px;
padding: 2px;
background: #1e232b;
border-radius: 2px;
min-width: calc(100% + 20px);
z-index: -2;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
nav .menu-icon{
display: block;
}
nav .search-icon,
nav .menu-icon span{
display: block;
}
nav .menu-icon span.hide,
nav .search-icon.hide{
display: none;
}
nav .cancel-icon.show{
display: block;
}
}
.content{
position: absolute;
top: 50%;
left: 50%;
text-align: center;
transform: translate(-50%, -50%);
}
.content header{
font-size: 30px;
font-weight: 700;
}
.content .text{
font-size: 30px;
font-weight: 700;
}
.space{
margin: 10px 0;
}
nav .logo.space{
color: red;
padding: 0 5px 0 0;
}
@media (max-width: 980px){
nav .menu-icon,
nav .cancel-icon,
nav .search-icon{
margin: 0 20px;
}
nav form{
right: 30px;
}
}
@media (max-width: 350px){
nav .menu-icon,
nav .cancel-icon,
nav .search-icon{
margin: 0 10px;
font-size: 16px;
}
}
.content{
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.content header{
font-size: 30px;
font-weight: 700;
}
.content .text{
font-size: 30px;
font-weight: 700;
}
.content .space{
margin: 10px 0;
}
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