On our mobile site, when clicking the hamburger icon in the top right I want the drop-down menu to appear and be scrollable, without the background scrolling. I have written javascript to set the body to fixed when you click the menu icon, however, this results in the website jumping to the top of the page. This is not what I want, I would like for it so that when the user clicks on the menu button, the background page stays where it is and does not jump to the top.
Below is the code that I have already tried for this.
Javascript
jQuery(function($) {
$(".x-btn-navbar").on("click", function() {
$("body").toggleClass("noScroll");
});
});
CSS
.noScroll {
position: fixed;
}
EDIT Here is the website: http://s2br5s5r3.gb-02.live-paas.net
href="#" makes page going top, give correctly url ex: href="https://www.google.com/" then the problem of going top will be solved.
css
.noScroll {
overflow: hidden;
/* position: fixed */
}
javascript
jQuery(function($) {
$(".x-btn-navbar").on("click", function() {
$("html, body").toggleClass("noScroll");
});
});
then the <body> will be unscrollable.
first of all remove the css position fixed from the class no-scroll. That's what is causing the page to jump on top when you click the menu button. After you open the menu it is scrollable as it should, i assume what you want is to prevent the page behind the open menu to be scrolled when the menu is open. Ypu can achieve this with javascript event listeners like so:
EventTarget.addEventListener('scroll', noscroll);
instead of EventTarget give the body an id and use the event listener to that when the user clicks on the element, but then when they close the menu you should remove the event listener with:
EventTarget.removeEventListener()
I hope this helps you
Keep in mind though that you have to separate the content of the page from the menu, because if you add the no scroll to the body that will apply also to the menu as long as it is a child of the body
Related
I am trying to get focus on a specific div on click of an anchor link.
Here is the code
Link
I am facing a problem that the view is rendered from different partial views like header footer etc.
The header contains the link to a particular div from another view and it has a sticky navbar. When I click the link on nav bar it does focus on the div. But some part of div hides behind the header navbar.
Which looks clumsy according to the UI perspective.
Here is the navbar code:
<nav><li>Link</li></nav>
The example code for page div could be something like
<div id="divname">Some Content</div>
Please give me a clue how can I get the div to show just beneath the sticky menu bar.
Try with giving some margin-top to the div you want to focus on clicking, so that, the navbar will not hide your div and then change your href from
href="somepage.html#divname"
to
href="#divname"
only. Always give unique ids or classes to the elements in HTML so that the machine will not get confused between them and treat two different elements the same way. Hope this will work for you. If not post a response for help.
There's plenty of questions like this one on StackOverflow. Try this one for example:
https://stackoverflow.com/a/59380086/1973005
You can add a pseudo-element (::before) to the linked element in CSS, using the following settings. This creates an invisible block above the linked element which again creates an offset for the linked element position, since the top of that pseudo-element will actually be the position of the link anchor.
.anchor_offset::before {
display: block;
content: ' ';
height: 10em; // Whatever height your navbar is
margin-top: -10em; // Whatever height your navbar is
width: 100%;
visibility: hidden;
}
<div id="divname" class="anchor_offset">Some Content</div>
Hello, the website that I am currently working on is Redec, and I am having an issue with the background scrolling when the menu is open on IOS. Please inspect the website as I am currently unable to supply the RAW html.
To replicate the issue, open the website (Redec) and click the menu item in the top right, and scroll down. You will notice that the background (body I think) also scrolls, and when you close the menu you are at the bottom of the page. I've looked everywhere and am unable to fix this problem.
Javascript
jQuery(function($) {
$(".x-btn-navbar").on("click", function() {
$("html, body").toggleClass("noScroll");
});
});
CSS
.noScroll {
overflow: hidden;
/* position: fixed */
}
As soon as you open my website, you are greeted with a T&C's and GDPR modal box see here. However, the background still scrolls when this is open, I have tried code to stop the scrolling, but that prevents scrolling across the whole website. Any help is greatly appreciated.
OUR WEBSITE
html,body.modal-open {
overflow: hidden;
}
.allowScroll {
overflow: scroll !important;
}
jQuery(function($) {
$(".termsagree").on("click", function() {
$("html, body.model-open").addClass("allowScroll");
});
});
EDIT Once you click agree the pop up won't show again unless you reload the website in another incognito page!
I couldn't find the css selector "modal-open" on your website but maybe something like this would work?
Replace your example code with this.
jQuery:
jQuery(document).ready(function ($) {
if($('#tlight').length){
$('body').css('overflow', 'hidden');
}
});
From the looks of it, once you click the agree button the page reloads and removes the '#tlight' element from the DOM. So what this will do is check if it exists on page load, and if it does set body overflow to hidden. You may need to add "important" to it depending on your current CSS.
I am using Jquery slideToggle to slide a div from the top of the page. The effect is working, and can be seen here (PLEASE HOVER OVER THE MEMBER LOGIN NAV BUTTON TO SEE EFFECT, the blue div will slide down):
My issue is, that when the page is scrolled downwards, the div is still sliding down from the very top of the document, not the top of the viewport window, so it is not visible. If you scroll down the page, and hover over member log in button on the right, you will see the problem (main nav moves down, but the hidden blue div is no longer visible).
I am wondering how I can recalculate where the top is, and tell slidetoggle to slide the blue down from there.
This may be helpful, the code I am using to affix the regular nav to the top of the page is the following:
$(function() {
$('#nav-wrapper').height($("#nav").height());
$('#nav').affix({
offset: { top: $('#nav').offset().top }
});
});
Looks like you'll have to change your script around a bit, but the way I'd go about this is to wrap all your nav elements (the login form and the nav bar) in a div and give that div
position: fixed;
That way your nav will be fixed at the top of the window and the login form will remain at the top of the screen regardless of scrolling.
Like this:
HTML:
<div id="nav-section-wrapper">
<div id="login">...</div>
<div id="nav-wrapper>...</div>
</div>
CSS:
#nav-section-wrapper {
position: fixed;
top: 0;
z-index: 1;
}
Ok, so there is a webpage with a long list. In the middle of the list I'd like to lock the scrolling and later enable it again. How would this be possible, so that it would behave nicely in modern mobile browsers?
One solution I tried is to set body position style to fixed and the setting top style to the scrollTop value prior to the setting position to fixed. There is this thing about position: fixed - as soon as it is set, the page will be jumped to the top. Problem is that on iOS Safari the page is sort of flashes when you enable/disable scroll, and it also gets really laggy behaviour on Android Chrome.
Any better hints?
Update: I have a sidebar menu with list of items, and while the main page should be locked, sidebar menu should remain scrollable.
Just add a class to the html-tag every time you want to look the screen. I use this method on js modals or lightboxes.
You can do this simply by adding the overflow attribute.
.
CSS:
html.-is-locked {
overflow: hidden !important;
}
.
JS:
Now you just have to add/remove the class with javascript:
//Get HTML element
var html = document.querySelector('html');
//Activate
html.classList.add('-is-locked');
//Deactivate
html.classList.remove('-is-locked');
//Toggle
html.classList.toggle('-is-locked');
Try this on the body instead of position:fixed:
body.locked{
height: 100vh;
overflow: hidden;
}
It will keep the scroll position but prevent scrolling.