I'm making a page with about 10 sections that a user can scroll through.
I need these sections to be full height, in other words, filling up the browser no matter the screen size or type.
The CSS for the sections looks like:
.scrollsections {
display: block;
position: relative;
width: 100%;
height: 500px;
}
The CSS for HTML and Body also looks like:
html,
body {
position: relative;
width: 100%;
height: 100%;
padding: 0;
margin: 0;
}
According to everything I could find, this should do the trick, but it is not.
Site is www.xenova.tv/site/plus.
You can use the vh property, which unfortunately has partial browser support.
If you need to support browsers that don't support it, you can try using a polyfill such as this, or add fallback height values for other browsers.
For more information on using these units, you can read this article on css-tricks.
With Jquery you should set height Property from window
and in resize trigger call this
e.g :
$(document).ready(function () {
$(window).load(function () {
setSize();
});
$(window).resize(function () {
setSize();
});
});
function setSize() {
$("#div").height($(window).height() - 20);
}
Hi I am trying to build a angular single page app for mobile that uses a map on one page. It also should include a sticky footer, and is based on bootstrap. The sticky footer css interferes with the css needed to get the map to take up all of the remaining screen space, so I add a class='map' to the html element to override certain css elements (see below).
Everything works nicely until I go to the map page, leave it and then return to the map page. In this instance the map is not working correctly at all. It is hard to describe, so please try the plnkr.
I have found CSS that works for the map reloading, but then that breaks something else in the site. It is driving me crazy trying to combine the two models, hence my appeal for help.
Update: I have now found that resizing the screen rectifies the rendering issues, until you leave and return to the map. Of course a mobile use cannot change their screen size, but this may help find a solution.
html {
position: relative;
min-height: 100%;
}
html.map {
height: 100%
}
body {
/* Margin bottom by footer height */
margin-bottom: 60px;
}
.map body {
/* For Google map */
height: 100%;
margin-bottom: 0;
padding-bottom: 60px;
padding-top: 60px
}
footer {
position: absolute;
bottom: 0;
width: 100%;
/* Set the fixed height of the footer here */
height: 60px;
background-color: #f5f5f5;
}
header {
width: 100%;
background-color: #ccc;
height: 60px;
top: 0;
}
.map header {
position: absolute;
}
UPDATE
I implemented a solution similar to yours, which I found in this blog article. Essentially, you have to trigger a resize event in order to have the map repainted correctly when it goes from hidden to visible.
But I put my code into a directive instead of a controller (doesn't bloat controller and decorates the element it affects), instead of adding a watcher it runs only after the directive/element is linked (more performant), and it doesn't require you to re-enter your coordinates in order to refresh:
.directive('autoRefresh', function($timeout){
return {
restrict: 'A',
link: function(scope, elem, attrs){
$timeout(function(){
var center = scope.map.getCenter();
google.maps.event.trigger(scope.map, "resize");
scope.map.setCenter(center);
});
}
}
})
Updated Plunker
OK, so what I was missing was to trigger the resize event. This now works perfectly in my plunker but not yet in my more complex actual code. Nearly there!
restosApp.controller('mapCtrl', function($scope) {
$scope.$watch('map', function() {
google.maps.event.trigger($scope.map, 'resize');
var ll = new google.maps.LatLng(52.374, 4.899);
$scope.map.setCenter(ll);
});
});
I'm trying to make the Fullcalendar headers fixed. I found this post:
in Fullcalendar is there a way to fix the header to not be scrollable
but there wasn't a resolution published.
I've looked in the documentation but can't find any reference to it.
Is there a way to do this?
Thanks, Rob
Although only talking about FullCalendar's scheduler component, I spent days hooking into scroll events of the intricacies of html with buggy results, especially as more views were needed. Then I stumbled across position:sticky & the below works like a dream (tested on chrome & safari)
.fc-head{
position: -webkit-sticky !important;
position: sticky !important;
top:0;
background-color: white;
z-index:9999 !important;
}
on top of this you need to handle the horizontal scroll to move the head horizontally when scrolling by adding an eventAfterAllRender handler:
eventAfterAllRender: function (view) {
var divider = $('.fc-divider').first();
var dividerOffset = divider.offset().left;
$('.fc-scroller').eq(3).scroll(function () {
var scrollLeft = $('.fc-scroller').eq(3).scrollLeft();
if (scrollLeft >= 0) {
var total = dividerOffset - scrollLeft;
$('.fc-head').css('left', total + 'px');
}
else {
$('.fc-head').css('position', 'relative');
$('.fc-head').css('left', dividerOffset + 'px');
}
});
}
Try add to your css something like there:
.fc-header{
position: fixed;
}
.fc-first .fc-last{
position: fixed;
}
Go to this site: http://tympanus.net/codrops/2014/01/09/sticky-table-headers-columns/
Download the JS
Then modify the source JS file like this:
Add all the main JS logic into a "constructor":
$.fn.stickyheader = function (method, options) {
So your first few lines in the JS file should look like this:
$(function () {
$.fn.stickyheader = function (method, options) {
if ($(this).find('thead').length > 0 && $(this).find('th').length > 0) {
Now you can "select" a specific DOM object like so:
$('.fc-grid').each(function () {
var seeThis = $(this);
if (seeThis.is(":visible")) {
//.fc-border-separate is the table
$(seeThis.find('.fc-border-separate')).stickyheader();
return false;
}
});
Then add this necessary CSS like this:
/For the sticky headers and columns/
.sticky-wrap .sticky-thead,
.sticky-wrap .sticky-col,
.sticky-wrap .sticky-intersect {
opacity: 0;
position: absolute;
top: 0;
left: 0;
transition: all .125s ease-in-out;
z-index: 50;
}
.sticky-wrap .sticky-thead {
box-shadow: 0 0.25em 0.1em -0.1em rgba(0,0,0,.125);
}
There you go. Super cool sticker header and column for your fullcalendar control :)
I've been searching for a "lightbox" type solution that allows this but haven't found one yet (please, suggest if you know of any).
The behavior I'm trying to recreate is just like what you'd see at Pinterest when clicking on an image. The overlay is scrollable (as in the whole overlay moves up like a page on top of a page) but the body behind the overlay is fixed.
I attempted to create this with just CSS (i.e. a div overlay on top of the whole page and body with overflow: hidden), but it doesn't prevent div from being scrollable.
How to keep the body/page from scrolling but keep scrolling inside the fullscreen container?
Theory
Looking at current implementation of the pinterest site (it might change in the future), when you open the overlay, a noscroll class is applied to the body element (setting overflow: hidden) making the body no longer scrollable.
The overlay created on-the-fly or already injected in the page and made visible via display: block — it makes no difference – has position : fixed and overflow-y: scroll, with top, left, right and bottom properties set to 0: this style makes the overlay fill the whole viewport (but now we are in 2022, so you may use inset: 0 instead).
The div inside the overlay is in position: static so the vertical scrollbar is related to that element. This is resulting in a scrollable but fixed overlay.
When you close the overlay, you have to hide it (using display: none) and you could even remove the node via javascript (or just the content inside, it's up to you but also depends on the nature of the content).
The final step is to also remove the noscroll class applied to the body (so the overflow property gets back to the value it had previously)
Code
Codepen Example
(it works by changing the aria-hidden attribute of the overlay in order to show and hide it and to increase its accessibility).
Markup
(open button)
<button type="button" class="open-overlay">OPEN LAYER</button>
(overlay and close button)
<section class="overlay" aria-hidden="true" tabindex="-1">
<div>
<h2>Hello, I'm the overlayer</h2>
...
<button type="button" class="close-overlay">CLOSE LAYER</button>
</div>
</section>
CSS
.noscroll {
overflow: hidden;
}
.overlay {
position: fixed;
overflow-y: scroll;
inset: 0; }
[aria-hidden="true"] { display: none; }
[aria-hidden="false"] { display: block; }
Javascript (vanilla-JS)
var body = document.body,
overlay = document.querySelector('.overlay'),
overlayBtts = document.querySelectorAll('button[class$="overlay"]'),
openingBtt;
[].forEach.call(overlayBtts, function(btt) {
btt.addEventListener('click', function() {
/* Detect the button class name */
var overlayOpen = this.className === 'open-overlay';
/* storing a reference to the opening button */
if (overlayOpen) {
openingBtt = this;
}
/* Toggle the aria-hidden state on the overlay and the
no-scroll class on the body */
overlay.setAttribute('aria-hidden', !overlayOpen);
body.classList.toggle('noscroll', overlayOpen);
/* On some mobile browser when the overlay was previously
opened and scrolled, if you open it again it doesn't
reset its scrollTop property */
overlay.scrollTop = 0;
/* forcing focus for Assistive technologies but note:
- if your modal has just a phrase and a button move the
focus on the button
- if your modal has a long text inside (e.g. a privacy
policy) move the focus on the first heading inside
the modal
- otherwise just focus the modal.
When you close the overlay restore the focus on the
button that opened the modal.
*/
if (overlayOpen) {
overlay.focus();
}
else {
openingBtt.focus();
openingBtt = null;
}
}, false);
});
/* detect Escape key when the overlay is open */
document.body.addEventListener('keyup', (ev) => {
if (ev.key === "Escape" && overlay.getAttribute('aria-hidden') === 'false') {
overlay.setAttribute('aria-hidden', 'true');
body.classList.toggle('noscroll', false);
openingBtt.focus();
openingBtt = null;
}
})
Finally, here's another example in which the overlay opens with a fade-in effect by a CSS transition applied to the opacity property. Also a padding-right is applied to avoid a reflow on the underlying text when the scrollbar disappears.
Codepen Example (fade)
CSS
.noscroll { overflow: hidden; }
#media (min-device-width: 1025px) {
/* not strictly necessary, just an experiment for
this specific example and couldn't be necessary
at all on some browser */
.noscroll {
padding-right: 15px;
}
}
.overlay {
position: fixed;
overflow-y: scroll;
inset: 0;
}
[aria-hidden="true"] {
transition: opacity 1s, z-index 0s 1s;
width: 100vw;
z-index: -1;
opacity: 0;
}
[aria-hidden="false"] {
transition: opacity 1s;
width: 100%;
z-index: 1;
opacity: 1;
}
overscroll-behavior css property allows to override the browser's default overflow scroll behavior when reaching the top/bottom of content.
Just add the following styles to overlay:
.overlay {
overscroll-behavior: contain;
...
}
Codepen demo
Currently works in Chrome, Firefox and IE(caniuse)
For more details check google developers article.
If you want to prevent overscrolling on ios, you can add position fixed to your .noscroll class
body.noscroll{
position:fixed;
overflow:hidden;
}
Most solutions have the problem that they do not retain the scroll position, so I took a look at how Facebook does it. In addition to setting the underlaying content to position: fixed they also set the top dynamically to retain the scroll position:
scrollPosition = window.pageYOffset;
mainEl.style.top = -scrollPosition + 'px';
Then, when you remove the overlay again, you need to reset the scroll position:
window.scrollTo(0, scrollPosition);
I created a little example to demonstrate this solution
let overlayShown = false;
let scrollPosition = 0;
document.querySelector('.toggle').addEventListener('click', function() {
if (!overlayShown) {
showOverlay();
} else {
removeOverlay();
}
overlayShown = !overlayShown;
});
function showOverlay() {
scrollPosition = window.pageYOffset;
const mainEl = document.querySelector('.main-content');
mainEl.style.top = -scrollPosition + 'px';
document.body.classList.add('show-overlay');
}
function removeOverlay() {
document.body.classList.remove('show-overlay');
window.scrollTo(0, scrollPosition);
const mainEl = document.querySelector('.main-content');
mainEl.style.top = 0;
}
.main-content {
background-image: repeating-linear-gradient( lime, blue 103px);
width: 100%;
height: 200vh;
}
.show-overlay .main-content {
position: fixed;
left: 0;
right: 0;
overflow-y: scroll; /* render disabled scroll bar to keep the same width */
/* Suggestion to put: overflow-y: hidden;
Disabled scrolling still makes a mess with its width. Hiding it does the trick. */
}
.overlay {
display: none;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: rgba(0, 0, 0, 0.3);
overflow: auto;
}
.show-overlay .overlay {
display: block;
}
.overlay-content {
margin: 50px;
background-image: repeating-linear-gradient( grey, grey 20px, black 20px, black 40px);
height: 120vh;
}
.toggle {
position: fixed;
top: 5px;
left: 15px;
padding: 10px;
background: red;
}
/* reset CSS */
body {
margin: 0;
}
<main class="main-content"></main>
<div class="overlay">
<div class="overlay-content"></div>
</div>
<button class="toggle">Overlay</button>
Don't use overflow: hidden; on body. It automatically scrolls everything to the top. There's no need for JavaScript either. Make use of overflow: auto;. This solution even works with mobile Safari:
HTML Structure
<div class="overlay">
<div class="overlay-content"></div>
</div>
<div class="background-content">
lengthy content here
</div>
Styling
.overlay{
position: fixed;
top: 0px;
left: 0px;
right: 0px;
bottom: 0px;
background-color: rgba(0, 0, 0, 0.8);
.overlay-content {
height: 100%;
overflow: scroll;
}
}
.background-content{
height: 100%;
overflow: auto;
}
See the demo here and source code here.
Update:
For people who want keyboard space bar, page up/down to work: you need to focus on the overlay, e.g., clicking on it, or manually JS focusing on it before this part of the div will respond to keyboard. Same with when the overlay is "switched off", since it's just moving the overlay to the side. Otherwise to browser, these are just two normal divs and it wouldn't know why it should focus on any one of them.
It is worth noting that sometimes adding "overflow:hidden" to the body tag doesn't do the job. In those cases, you'll have to add the property to the html tag as well.
html, body {
overflow: hidden;
}
The behaviour you want to prevent is called scroll chaining. To disable it, set
overscroll-behavior: contain;
on your overlay in CSS.
You can easily do this with some "new" css and JQuery.
Initially: body {... overflow:auto;}
With JQuery you can dynamically switch between 'overlay' and 'body'. When on 'body', use
body {
position: static;
overflow: auto;
}
When on 'overlay' use
body {
position: sticky;
overflow: hidden;
}
JQuery for the switch('body'->'overlay'):
$("body").css({"position": "sticky", "overflow": "hidden"});
JQuery for the switch('overlay'->'body'):
$("body").css({"position": "static", "overflow": "auto"});
if anyone is looking for a solution for React function components, you can put this inside the modal component:
useEffect(() => {
document.body.style.overflowY = 'hidden';
return () =>{
document.body.style.overflowY = 'auto';
}
}, [])
Generally speaking, if you want a parent (the body in this case) to prevent it from scrolling when a child (the overlay in this case) scrolls, then make the child a sibling of the parent to prevent the scroll event from bubbling up to the parent. In case of the parent being the body, this requires an additional wrapping element:
<div id="content">
</div>
<div id="overlay">
</div>
See Scroll particular DIV contents with browser's main scrollbar to see its working.
The chosen answer is correct, but has some limitations:
Super hard "flings" with your finger will still scroll <body> in the background
Opening the virtual keyboard by tapping an <input> in the modal will direct all future scrolls to <body>
I don't have a fix for the first issue, but wanted to shed some light on the second. Confusingly, Bootstrap used to have the keyboard issue documented, but they claimed it was fixed, citing http://output.jsbin.com/cacido/quiet as an example of the fix.
Indeed, that example works fine on iOS with my tests. However, upgrading it to the latest Bootstrap (v4) breaks it.
In an attempt to figure out what the difference between them was, I reduced a test case to no longer depend on Bootstrap, http://codepen.io/WestonThayer/pen/bgZxBG.
The deciding factors are bizarre. Avoiding the keyboard issue seems to require that background-color is not set on the root <div> containing the modal and the modal's content must be nested in another <div>, which can have background-color set.
To test it, uncomment the below line in the Codepen example:
.modal {
position: fixed;
top: 0;
right: 0;
bottom: 0;
left: 0;
z-index: 2;
display: none;
overflow: hidden;
-webkit-overflow-scrolling: touch;
/* UNCOMMENT TO BREAK */
/* background-color: white; */
}
For touch devices, try adding a 1px wide, 101vh min-height transparent div in the wrapper of the overlay. Then add -webkit-overflow-scrolling:touch; overflow-y: auto; to the wrapper. This tricks mobile safari into thinking the overlay is scrollable, thus intercepting the touch event from the body.
Here's a sample page. Open on mobile safari: http://www.originalfunction.com/overlay.html
https://gist.github.com/YarGnawh/90e0647f21b5fa78d2f678909673507f
I found this question trying to solve issue I had with my page on Ipad and Iphone - body was scrolling when I was displaying fixed div as popup with image.
Some answers are good, however none of them solved my issue. I found following blog post by Christoffer Pettersson. Solution presented there helped issue I had with iOS devices and it helped my scrolling background problem.
Six things I learnt about iOS Safari's rubber band scrolling
As it was suggested I include major points of the blog post in case link gets outdated.
"In order to disable that the user can scroll the background page while the "menu is open", it is possible to control what elements should be allowed to be scrolled or not, by applying some JavaScript and a CSS class.
Based on this Stackoverflow answer you can control that elements with the disable-scrolling should not
perform their default scroll action when the touchmove event is triggered."
document.ontouchmove = function ( event ) {
var isTouchMoveAllowed = true, target = event.target;
while ( target !== null ) {
if ( target.classList && target.classList.contains( 'disable-scrolling' ) ) {
isTouchMoveAllowed = false;
break;
}
target = target.parentNode;
}
if ( !isTouchMoveAllowed ) {
event.preventDefault();
}
};
And then put the disable-scrolling class on the page div:
<div class="page disable-scrolling">
Simple inline styling for the body tag:
<body style="position: sticky; overflow: hidden;">
If the intent is to disable on mobile/ touch devices then the most straightforward way to do it is using touch-action: none;.
Example:
const app = document.getElementById('app');
const overlay = document.getElementById('overlay');
let body = '';
for (let index = 0; index < 500; index++) {
body += index + '<br />';
}
app.innerHTML = body;
app.scrollTop = 200;
overlay.innerHTML = body;
* {
margin: 0;
padding: 0;
}
html,
body {
height: 100%;
}
#app {
background: #f00;
position: absolute;
height: 100%;
width: 100%;
overflow-y: scroll;
line-height: 20px;
}
#overlay {
background: rgba(0,0,0,.5);
position: fixed;
top: 0;
left: 0;
right: 0;
height: 100%;
padding: 0 0 0 100px;
overflow: scroll;
}
<div id='app'></div>
<div id='overlay'></div>
(The example does not work in the context of Stack Overflow. You will need to recreate it in a stand-alone page.)
If you want to disable scrolling of the #app container, just add touch-action: none;.
I'd like to add to previous answers because I tried to do that, and some layout broke as soon as I switched the body to position:fixed. In order to avoid that, I had to also set body's height to 100% :
function onMouseOverOverlay(over){
document.getElementsByTagName("body")[0].style.overflowY = (over?"hidden":"scroll");
document.getElementsByTagName("html")[0].style.position = (over?"fixed":"static");
document.getElementsByTagName("html")[0].style.height = (over?"100%":"auto");
}
Use the following HTML:
<body>
<div class="page">Page content here</div>
<div class="overlay"></div>
</body>
Then JavaScript to intercept and stop scrolling:
$(".page").on("touchmove", function(event) {
event.preventDefault()
});
Then to get things back to normal:
$(".page").off("touchmove");
In my case, none of these solutions worked out on iPhone (iOS 11.0).
The only effective fix that is working on all my devices is this one - ios-10-safari-prevent-scrolling-behind-a-fixed-overlay-and-maintain-scroll-position
try this
var mywindow = $('body'), navbarCollap = $('.navbar-collapse');
navbarCollap.on('show.bs.collapse', function(x) {
mywindow.css({visibility: 'hidden'});
$('body').attr("scroll","no").attr("style", "overflow: hidden");
});
navbarCollap.on('hide.bs.collapse', function(x) {
mywindow.css({visibility: 'visible'});
$('body').attr("scroll","yes").attr("style", "");
});
One solution for a React functional component is to use the useEffect hook.
Here's the code example bellow (pay attention to the useEffect definition):
import {useEffect, useRef} from "react";
export default function PopoverMenu({className, handleClose, children}) {
const selfRef = useRef(undefined);
useEffect(() => {
const isPopoverOpenned = selfRef.current?.style.display !== "none";
const focusedElement = document?.activeElement;
const scrollPosition = {x: window.scrollX, y: window.scrollY};
if (isPopoverOpenned) {
preventDocBodyScrolling();
} else {
restoreDocBodyScrolling();
}
function preventDocBodyScrolling() {
const width = document.body.clientWidth;
const hasVerticalScrollBar = (window.innerWidth > document.documentElement.clientWidth);
document.body.style.overflowX = "hidden";
document.body.style.overflowY = hasVerticalScrollBar ? "scroll" : "";
document.body.style.width = `${width}px`;
document.body.style.position = "fixed";
}
function restoreDocBodyScrolling() {
document.body.style.overflowX = "";
document.body.style.overflowY = "";
document.body.style.width = "";
document.body.style.position = "";
focusedElement?.focus();
window.scrollTo(scrollPosition.x, scrollPosition.y);
}
return () => {
restoreDocBodyScrolling(); // cleanup on unmount
};
}, []);
return (
<>
<div
className="backdrop"
onClick={() => handleClose && handleClose()}
/>
<div
className={`pop-over-menu${className ? (` ${className}`) : ""}`}
ref={selfRef}
>
<button
className="pop-over-menu--close-button" type="button"
onClick={() => handleClose && handleClose()}
>
X
</button>
{children}
</div>
</>
);
}
Originally posted on this other related Stackoverflow question: https://stackoverflow.com/a/69016517/14131330
CSS
.noScroll {
overflow: hidden;
}
Javascript
<script>
function toggleNav() {
document.body.classList.toggle("noScroll");
}
</script>
Button
<button onclick="toggleNav()">
Toggle Nav
</button>
If you want to stop body/html scroll add as the following
CSS
html, body {
height: 100%;
}
.overlay{
position: fixed;
top: 0px;
left: 0px;
right: 0px;
bottom: 0px;
background-color: rgba(0, 0, 0, 0.8);
.overlay-content {
height: 100%;
overflow: scroll;
}
}
.background-content{
height: 100%;
overflow: auto;
}
HTML
<div class="overlay">
<div class="overlay-content"></div>
</div>
<div class="background-content">
lengthy content here
</div>
Basically, you could do it without JS.
The main idea is to add html/body with height: 100% and overflow: auto.
and inside your overlay, you could either enable/disable scroll based on your requirement.
Hope this helps!
Use below code for disabling and enabling scroll bar.
Scroll = (
function(){
var x,y;
function hndlr(){
window.scrollTo(x,y);
//return;
}
return {
disable : function(x1,y1){
x = x1;
y = y1;
if(window.addEventListener){
window.addEventListener("scroll",hndlr);
}
else{
window.attachEvent("onscroll", hndlr);
}
},
enable: function(){
if(window.removeEventListener){
window.removeEventListener("scroll",hndlr);
}
else{
window.detachEvent("onscroll", hndlr);
}
}
}
})();
//for disabled scroll bar.
Scroll.disable(0,document.body.scrollTop);
//for enabled scroll bar.
Scroll.enable();