I’m making a blog website, and I’m making it responsive. But the navbar isn’t working. I think the problem is in the JavaScript.
I checked the console and it showed this:
Uncaught TypeError: Cannot read properties of null (reading ‘style’) at HTMLButtonElement.openNav
I looked it up on YouTube and Stack Overflow but nothing worked.
Here is my code.
HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<link rel="stylesheet" href="style.css">
<link rel="stylesheet" href="https://unicons.iconscout.com/release/v4.0.0/css/line.css">
<link href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800;900&display=swap" rel="stylesheet">
</head>
<body>
<nav>
<div class="container nav_container">
<a href="index .html" class="nav_logo">blog</a>
<ul class="nav_items">
<li><a href="blog.html">Blog</a></li>
<li><a href="about.html">About</a></li>
<li><a href="signin.html">Sign in</a></li>
<li><a href="contact.html">Contact</a></li>
<li class="nav_profile">
<div class="avatar">
<img src="./images/person_FILL0_wght400_GRAD0_opsz24.png" alt="">
</div>
<ul>
<li><a href="dashboard.html">Dashboard</a></li>
<li><a href="logout.html">Dashboard</a></li>
</ul>
</li>
</ul>
<button id="open_nav-btn"><i class="uil uil-bars"></i></button>
<button id="close_nav-btn"><i class="uil uil-multiply"></i></button>
</div>
</nav>
<!------------------------------NAV END---------------------------------->
<!------------------------------FEATURED---------------------------------->
<section class="featured">
<div class="container featured_container post">
<div class="post_thumbnail">
<img src="./images/pintrest.jpg" alt="">
</div>
<div class="post_info">
<a href="" class="category_button">Wild Life</a>
<h2 class="post_title"><a href="post.html">Lorem ipsum dolor, sit amet consectetur
adipisicing elit.</a></h2>
<p class="post_body">
Lorem ipsum dolor sit amet consectetur adipisicing elit.
Ipsum labore fuga repellendus.
</p>
<div class="post_author">
<div class="post_author-avatar">
<img src="./images/person_FILL0_wght400_GRAD0_opsz24.png" alt="">
</div>
<div class="post_author-info">
<h5>By: JebaJeevan</h5>
<small>December,30,2023 - 07:23</small>
</div>
</div>
</div>
</div>
</section>
<!------------------------------FEATURED END---------------------------------->
<section class="posts">
<div class="container post_container">
<article class="post">
<div class="post_thumbnail">
<img src="./images/pintrest.jpg" >
</div>
<div class="post_info">
<a href="" class="category_button">Wild Life</a>
<h3 class="post_title">
<a href="post.html">Lorem ipsum dolor sit amet consectetur adipisicing elit. Inventore, voluptatem.</a>
</h3>
<p class="post_body">
Lorem ipsum dolor sit amet consectetur adipisicing elit. Numquam optio, hic quibusdam eveniet animi aliquid soluta, aut totam alias
</p>
<div class="post_author">
<div class="post_avatar-avatar">
<img src="./images/person_FILL0_wght400_GRAD0_opsz24.png" alt="">
</div>
<div class="post_author-info">
<h5>By:Koala Man</h5>
<small>January 06 2024 - 2:21pm</small>
</div>
</div>
</div>
</article>
<article class="post">
<div class="post_thumbnail">
<img src="./images/pintrest.jpg" >
</div>
<div class="post_info">
<a href="" class="category_button">Wild Life</a>
<h3 class="post_title">
<a href="post.html">Lorem ipsum dolor sit amet consectetur adipisicing elit. Inventore, voluptatem.</a>
</h3>
<p class="post_body">
Lorem ipsum dolor sit amet consectetur adipisicing elit. Numquam optio, hic quibusdam eveniet animi aliquid soluta, aut totam alias
</p>
<div class="post_author">
<div class="post_avatar-avatar">
<img src="./images/person_FILL0_wght400_GRAD0_opsz24.png" alt="">
</div>
<div class="post_author-info">
<h5>By:Koala Man</h5>
<small>January 06 2024 - 2:21pm</small>
</div>
</div>
</div>
</article>
<article class="post">
<div class="post_thumbnail">
<img src="./images/pintrest.jpg" >
</div>
<div class="post_info">
<a href="" class="category_button">Wild Life</a>
<h3 class="post_title">
<a href="post.html">Lorem ipsum dolor sit amet consectetur adipisicing elit. Inventore, voluptatem.</a>
</h3>
<p class="post_body">
Lorem ipsum dolor sit amet consectetur adipisicing elit. Numquam optio, hic quibusdam eveniet animi aliquid soluta, aut totam alias
</p>
<div class="post_author">
<div class="post_avatar-avatar">
<img src="./images/person_FILL0_wght400_GRAD0_opsz24.png" alt="">
</div>
<div class="post_author-info">
<h5>By:Koala Man</h5>
<small>January 06 2024 - 2:21pm</small>
</div>
</div>
</div>
</article>
<article class="post">
<div class="post_thumbnail">
<img src="./images/pintrest.jpg" >
</div>
<div class="post_info">
<a href="" class="category_button">Wild Life</a>
<h3 class="post_title">
<a href="post.html">Lorem ipsum dolor sit amet consectetur adipisicing elit. Inventore, voluptatem.</a>
</h3>
<p class="post_body">
Lorem ipsum dolor sit amet consectetur adipisicing elit. Numquam optio, hic quibusdam eveniet animi aliquid soluta, aut totam alias
</p>
<div class="post_author">
<div class="post_avatar-avatar">
<img src="./images/person_FILL0_wght400_GRAD0_opsz24.png" alt="">
</div>
<div class="post_author-info">
<h5>By:Koala Man</h5>
<small>January 06 2024 - 2:21pm</small>
</div>
</div>
</div>
</article>
<article class="post">
<div class="post_thumbnail">
<img src="./images/pintrest.jpg" >
</div>
<div class="post_info">
<a href="" class="category_button">Wild Life</a>
<h3 class="post_title">
<a href="post.html">Lorem ipsum dolor sit amet consectetur adipisicing elit. Inventore, voluptatem.</a>
</h3>
<p class="post_body">
Lorem ipsum dolor sit amet consectetur adipisicing elit. Numquam optio, hic quibusdam eveniet animi aliquid soluta, aut totam alias
</p>
<div class="post_author">
<div class="post_avatar-avatar">
<img src="./images/person_FILL0_wght400_GRAD0_opsz24.png" alt="">
</div>
<div class="post_author-info">
<h5>By:Koala Man</h5>
<small>January 06 2024 - 2:21pm</small>
</div>
</div>
</div>
</article>
<article class="post">
<div class="post_thumbnail">
<img src="./images/pintrest.jpg" >
</div>
<div class="post_info">
<a href="" class="category_button">Wild Life</a>
<h3 class="post_title">
<a href="post.html">Lorem ipsum dolor sit amet consectetur adipisicing elit. Inventore, voluptatem.</a>
</h3>
<p class="post_body">
Lorem ipsum dolor sit amet consectetur adipisicing elit. Numquam optio, hic quibusdam eveniet animi aliquid soluta, aut totam alias
</p>
<div class="post_author">
<div class="post_avatar-avatar">
<img src="./images/person_FILL0_wght400_GRAD0_opsz24.png" alt="">
</div>
<div class="post_author-info">
<h5>By:Koala Man</h5>
<small>January 06 2024 - 2:21pm</small>
</div>
</div>
</div>
</article>
</div>
</section>
<!------------------------------POSTS END---------------------------------->
<section class="category_buttons">
<div class="container category_buttons-container">
<a href="" class="category_button">Art</a>
<a href="" class="category_button">Wild Life</a>
<a href="" class="category_button">Best</a>
<a href="" class="category_button">Funny</a>
<a href="" class="category_button">Useful</a>
<a href="" class="category_button">DIY</a>
</div>
</section>
<!------------------------------CB END---------------------------------->
<footer>
<div class="footer_socials">
<a href="https://www.youtube.com/@EGATORTUTORIALS" target="_blank"><i class="uil uil-youtube">
</i></a>
<a href="https://www.youtube.com/@EGATORTUTORIALS" target="_blank"><i class="uil uil-facebook-f">
</i></a>
<a href="https://www.youtube.com/@EGATORTUTORIALS" target="_blank"><i class="uil uil-twitter">
</i></a>
<a href="https://www.youtube.com/@EGATORTUTORIALS" target="_blank"><i class="uil uil-instagram">
</i></a>
</div>
<div class="container footer_container">
<article>
<h4>Categories</h4>
<ul>
<li><a href="">Art</a></li>
<li><a href="">Music</a></li>
<li><a href="">Business</a></li>
<li><a href="">Car</a></li>
<li><a href="">Call</a></li>
<li><a href="">Road</a></li>
</ul>
</article>
<article>
<h4>Support</h4>
<ul>
<li><a href="">Online Support</a></li>
<li><a href="">Location</a></li>
<li><a href="">Email</a></li>
<li><a href="">Social Support</a></li>
<li><a href="">Call</a></li>
</ul>
</article>
<article>
<h4>Blog</h4>
<ul>
<li><a href="">Safety</a></li>
<li><a href="">repair</a></li>
<li><a href="">Popular</a></li>
<li><a href="">Recent</a></li>
<li><a href="">Categories</a></li>
</ul>
</article>
<article>
<h4>Permalinks</h4>
<ul>
<li><a href="#">Home</a></li>
<li><a href="#">Blog</a></li>
<li><a href="#">About</a></li>
<li><a href="#">Services</a></li>
<li><a href="#">Contact</a></li>
</ul>
</article>
</div>
</footer>
<script src="main.js" defer></script>
</body>
</html>
:root{
--color-primary:#6f6af8;
--color-primary-light:hsl(242, 91%, 69%, 18%);
--color-primary-variant:#5854c7;
--color-red:#da0f3f;
--color-red-light:hsl(346,87%,47%,15%);
--color-green:#00c476;
--color-green-light:hsl(156, 100%, 38%, 15%);
--color-gray-900:#1e1e66;
--color-gray-700:#2b2b7c;
--color-gray-300:rgba(242, 242, 254, 0.3);
--color-gray-200:rgba(242, 242, 254, 0.7);
--color-white:#f2f2fe;
--color-bg:#0f0f3e;
--transition:all 300ms ease ;
--container-width-lg:74%;
--container-width-md:88%;
--form-width:40%;
--card-border-radius-1:0.3rem;
--card-border-radius-2:0.5rem;
--card-border-radius-3:0.8rem;
--card-border-radius-4:2rem;
--card-border-radius-5:5rem;
}
/*==========GENERAL==========*/
*{
margin:0;
padding: 0;
outline: 0;
border: 0;
appearance: 0;
list-style: none;
text-decoration: none;
}
body{
font-family: 'Poppins', sans-serif;
line-height: 1.6;
color: var(--color-gray-200);
overflow-x: hidden;
background: var(--color-bg);
font-size: 0.9rem;
}
.container{
width: var(--container-width-lg);
max-width: 1800px;
margin-inline: auto;
}
section{
margin-top: 3rem;
width: 100vw;
}
h1,h2,h3,h4,h5{
color: var(--color-white);
line-height: 1.3;
}
h1{
font-size: 3rem;
margin: 1rem 0;
}
h2{
font-size: 1rem;
margin: 1rem 0;
}
h3{
font-size: 0.9rem;
margin: 0.8rem 0 0.5rem;
}
h4{
font-size: 1rem;
}
a{
color: var(--color-white);
transition: var(--transition);
}
img{
display: block;
width: 100%;
object-fit: cover;
}
/*==========NAV==========*/
nav{
background: var(--color-primary);
width: 100vw;
height: 4.5rem;
position: fixed;
top: 0;
z-index: 10;
box-shadow: 0 1rem 1rem rgba(0, 0, 0, 0.2);
}
nav button{
display: none ;
}
.nav_container{
height: 100%;
display: flex;
align-items: center;
justify-content: space-between;
}
.avatar{
width: 2.5rem;
aspect-ratio: 1/1;
height: 2.5rem;
border-radius: 50%;
overflow: hidden;
border: 0.3rem solid var(--color-bg);
}
.nav_logo{
font-weight: 600;
font-size: 1.2rem;
}
.nav_items{
display: flex;
align-items: center;
gap: 4rem;
}
.nav_profile{
position: relative;
cursor: pointer;
}
.nav_profile ul{
position: absolute;
top: 125%;
right: 0;
display: flex;
flex-direction: column;
box-shadow: 0 3rem 3rem rgba(0, 0, 0, 0.4);
visibility: hidden;
opacity: 0;
transition: var(--transition);
}
/*show nav ul when nav profile is hovered*/
.nav_profile:hover > ul{
visibility: visible;
opacity: 1;
}
.nav_profile ul li a{
padding: 1rem;
background: var(--color-gray-900);
display: block;
width: 100%;
}
.nav_profile ul li:last-child a{
background: var(--color-red);
color: var(--color-bg);
}
/*==========CATEGORY BUTTON==========*/
.category_button{
background: var(--color-primary-light);
color: var(--color-primary);
padding: 0.5rem 1rem;
border-radius: var(--card-border-radius-2);
font-weight: 600;
font-size: 0.8rem;
text-align: center;
}
.category_button:hover{
color: var(--color-white);
}
/*==========GENERAL POST==========*/
.post_thumbnail{
border-radius: 3rem 0rem;
border-color: #f2f2fe;
overflow: hidden;
margin-bottom: 1.6rem;
}
.post_author{
display: flex;
gap: 1rem;
margin-top: 1.2rem;
}
.post_author-avatar{
width: 2.5rem;
height: 2.5rem;
border-radius: var(--card-border-radius-2);
overflow: hidden;
}
/*==========FEATURED==========*/
.featured{
margin-top: 8rem;
}
.featured_container{
display: grid;
grid-template-columns: 1fr 1fr;
gap: 4rem;
}
.featured .post_thumbnail{
height: fit-content;
}
/*==========POST==========*/
.post_container{
display: grid;
grid-template-columns: repeat(3,1fr);
gap: 5rem;
margin-bottom: 5rem;
}
/*==========CATEGORY BUTTON==========*/
.category_buttons{
padding: 4rem 0rem;
border-top: 2px solid var(--color-gray-900);
border-bottom: 2px solid var(--color-gray-900);
}
.category_buttons-container{
width: fit-content;
display: grid;
grid-template-columns: repeat(3,1fr);
gap: 1rem;
}
/*==========FOOTER==========*/
footer{
background: var(--color-gray-900);
padding: 5rem 0 0;
box-shadow: inset 0rem 1.5rem 1.5rem rgba(0, 0, 0, 0.2);
}
.footer_socials{
margin-inline: auto;
width: fit-content;
margin-bottom: 5rem;
display: flex;
justify-content: space-between;
align-items: center;
gap: 1.2rem;
}
.footer_socials a{
background: var(--color-bg);
border-radius: 50%;
width: 2.3rem;
height: 2.3rem;
display: flex;
align-items: center;
justify-content: center;
}
.footer_socials a:hover{
background: var(--color-white);
color: var(--color-bg);
}
.footer_container{
display: grid;
grid-template-columns: repeat(4,1fr);
}
footer h4{
color: var(--color-white);
margin-bottom: 0.6rem;
}
footer ul li{
padding: 0.4rem 0;
}
footer ul a{
opacity: 0.75;
}
footer ul a:hover{
letter-spacing: 0.2rem;
opacity: 1;
}
/*==========MEDIA QUERIES [MEDIUM DEVICES]==========*/
@media screen and (max-width:1024px) {
/*==========GENERAL==========*/
.container{
width: var(--container-width-md);
}
h2{
font-size: 1.6rem;
}
h3{
font-size: 1.2rem;
}
h5{
font-size: 0.8rem;
}
/*==========NAV==========*/
nav button{
display: inline-block;
font-size: 1.5rem;
background: transparent;
color: var(--color-white);
cursor: pointer;
}
nav button#close_nav-btn{
display:none;
}
.nav_container{
position: relative;
}
.nav_items{
position: absolute;
flex-direction: column;
top: 100%;
right: 0;
width: 12rem;
align-items: flex-start;
justify-content: center;
gap: 0;
display: none;
}
.nav_items li{
width: 100%;
height: 4.5rem;
display: flex;
align-items: center;
box-shadow: -2rem 3rem 7rem rgba(0, 0, 0, 0.8);
border-top: 1px solid var(--color-bg);
}
.nav_items li a{
border-radius: 0;
width: 100%;
height: 100%;
background: var(--color-gray-900);
padding: 0 2rem;
display: flex;
align-items: center;
}
.nav_profile{
background: var(--color-gray-900);
}
.nav_profile ul{
top: 100%;
width: 100%;
}
.nav_profile .avatar{
margin-left: 2rem;
border: 0;
}
}
JS
const navItems = document.querySelector('nav_items');
const openNavBtn = document.querySelector('#open_nav-btn');
const closeNavBtn = document.querySelector('#close_nav-btn');
const openNav = () => {
navItems.style.display = 'flex';
openNavBtn.style.display = 'none';
closeNavBtn.style.display = 'inline-block';
}
openNavBtn.addEventListener('click',openNav);
New contributor
pappa raj is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
5
You seem to be missing a dot in your selector :
const navItems = document.querySelector('nav_items');
should instead be :
const navItems = document.querySelector('.nav_items');
New contributor
Arnaud Flaesch is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2