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Asked: 2024-09-25T19:06:47+05:30 In:

How can I make a div element disappear when the browser window is resized to a width that is below a certain threshold?

So, I’ve been tinkering with my website lately, and I hit a bit of a wall with this one issue that’s been bugging me. I need to figure out how to make a `div` element just vanish when the browser window is resized to below a certain width. You know, kind of like how some websites hide certain features or menus when you’re viewing them on mobile devices? I want that slick functionality without complicating the whole code too much.

Here’s what I’m working with: I’ve got this `div` that contains a bunch of info that’s only relevant for desktop users. When you squish the browser window down, I want to make sure this `div` gets out of the way, so it doesn’t clutter the mobile view. I’ve tried a few different things, but I just can’t seem to nail down the best approach. I’ve thought about using some CSS media queries, but I’m unsure of how to properly implement those in this specific case.

Also, I was wondering if there is a clean JavaScript solution that could do this without needing to dive too deep into event listeners or anything overly complicated. I mean, a simple solution would be great because I’m trying to keep my code as streamlined as possible. I really want to avoid having any flickering or layout shifts, you know? It’s super important for me to maintain a good user experience, especially because I’ve been trying to fine-tune my site for mobile users lately.

So, I guess my main questions are: what’s the best way to approach this? Should I stick with CSS, or is JavaScript going to give me a better outcome? And if you have any snippets or examples that have worked for you in similar situations, I’d love to see those. I’m all ears for any advice or insights you have!

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    2 Answers

    1. The best approach to make a `div` element disappear when the browser window is resized to below a certain width is to use CSS media queries. This method is efficient and keeps your codebase clean. You can achieve this by adding a media query in your CSS file to hide the `div` for screens smaller than your specified width. For example, if you want to hide a `div` with the class `desktop-only`, you can use the following CSS:

      
@media (max-width: 768px) {
    .desktop-only {
        display: none;
    }
}

      This CSS rule will hide the `div` with the class `desktop-only` when the viewport width is 768 pixels or narrower, providing a seamless experience for mobile users without needing to implement JavaScript.

      While CSS is generally the more straightforward solution for this case, if you prefer a JavaScript approach, you can make use of the `window.resize` event, though it’s slightly more complex. A simple example would be to check the window width on resize and toggle the visibility of the `div` accordingly. Here’s a JavaScript snippet you can use:

      
window.addEventListener('resize', function() {
    const desktopDiv = document.querySelector('.desktop-only');
    if (window.innerWidth < 768) {
        desktopDiv.style.display = 'none';
    } else {
        desktopDiv.style.display = 'block';
    }
});

      This script listens for a resize event and hides the `div` by setting its display property to 'none' when the width is below 768 pixels. However, since this can lead to performance issues if resize events are fired frequently, sticking to CSS is still the more user-friendly and efficient choice.

    2. Sounds like you’re aiming for a responsive design that hides the `div` when the browser width gets too narrow. You can definitely achieve this with CSS using media queries, and it’s pretty straightforward!

      Here’s a simple example:

      
    /* Add this CSS to your styles */
    @media (max-width: 768px) {
        .desktop-only {
            display: none;
        }
    }

      In this code, replace .desktop-only with the class name of your `div`. The `768px` is a common breakpoint for tablets and smaller devices, but you can tweak this value to suit your needs.

      If you prefer a JavaScript approach, you can just include a snippet that checks the width of the window and hides the `div`. Here’s a simple way to do this:

      This script runs the checkWidth function on resize and also when the page loads, so it should work well for your use case. It's pretty clean, and you won't have to deal with flickering or layout shifts since it just toggles the display style.

      So, to wrap it up, go with the CSS for simplicity, but if you want a JavaScript option, that can work too. Both methods should get the job done without complicating your code!

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