So I have an element that resides at the bottom of my list using:
position: sticky;
bottom: 0;
And I am using scrollIntoView(true) to scroll to it. There is two problems though.
It scrolls first to a position where the sticky element in in its original position. Not stickied to the bottom. Then you have to fire the scrollIntoView once again so it scrolls the element to the top.
ScrollIntoView scrolls the whole window too even though the element is inside a scrollable container.
I can't find a solution for either problem. My goal is to have a sticky element and be able to align it to the top when clicking it. I am using Angular but I don't really think that matters.
The solution was:
scrollTo(container: HTMLUListElement, header: HTMLLIElement) {
container.scrollTo(0, header.offsetTop);
container.scrollTo(0, header.offsetTop);
}
It's important that you neither use smooth scrolling in the scrollTo function or scroll-behavior: "smooth" in CSS.
And don't forget to add position: relative to the container.
Related
Currently on my single page site when you click on the Bootstrap navbar menu items it takes you to the section of the page with that div #ID. However, naturally because the top of the navbar lines up with the top of the new section my content is overlapped by the width of the navbar (80px or 50px when collapsed).
Screenshot of issue:
"Ready to book" heading is actually centered in the middle of that div but overlapped by 80px of navbar.
Screenshot showing top of page:
The issue is that I do not wish for the navbar to overlap the content in the section I have linked to. Put in other words, I would like the top of bottom of the navbar to line up with the top of the new section div.
Surely this can be handled using some JS to offset the navbar up by the height of the the navbar?
I have had a suggestion to use CSS to add padding into the top of section but this adds an extra 80px of padding that I don't want, when normally scrolling the page.
Okay so I found two solution to this finally using JS and CSS
here.
My preference is for this CSS solution:
#id:before {
display: block;
content: " ";
margin-top: -80px;
height: 80px;
visibility: hidden;
}
Obviously, replace ID with the ID of the anchor.
The actual JS snippet solution:
var shiftWindow = function() { scrollBy(0, -50) };
window.addEventListener("hashchange", shiftWindow);
function load() { if (window.location.hash) shiftWindow(); }
However, it is still a bit clunky as you can actually see the the browser scroll to the anchor point and then back up by the scrollBy offset amount of 80px.
I am not sure if this problem has been solved yet, but I had the same problem and adding the appropriate heading worked (by appropriate padding I mean the height of your navbar element).
For example:
#id { padding:50px }
This is a strange bug i'm facing, i don't really understand the problem so forgive me for the obscure title.
The problem is I'm developing a SPA style site and i want the content to slide in from the right (when the buttons at the bottom are clicked)
I thought this would be easy, but for some reason it is easy to achieve from the left, using the example below
.page {
right: 100%;}
.page.active {
right: 0; }
https://jsfiddle.net/pphfstos/3/
and less ideally to slide the full width across like this
.page {
left: -100%;}
.page.active {
left: 0; }
https://jsfiddle.net/pphfstos/4/
But when i try to create the same effect as the first example but from the right it not only doesn't work but totally seems to destroy the page
.page {
right: -100%;}
.page.active {
right: 0; }
https://jsfiddle.net/pphfstos/5/
There is other code involved as you can see in the fiddle, but these are the only things that are different between the 3 examples
Can anyone explain what is happening and how to fix it?
Content you position outside of the viewport to the left is actually hidden, and can’t be reached via scrolling.
Content you position outside of the viewport to the right however “extends” the page in that direction, and can be scrolled to.
Remove the overflow-x: hidden from html/body in your first and third fiddle, and you see what I mean – in the first one, the content positioned to the left is hidden, and no scrollbar appears; in your third fiddle however you do get a scrollbar, and the content positioned to the right can be reached via scrolling, moving the part of your page that is initially visible to the left while you’re doing so.
Now, setting overflow-x: hidden removes the ability to scroll using the mouse; but the viewport can still be “shifted” to display that content, for example by navigating to an anchor – and that is what your links are doing. (But because this is an “instant jump” and not smooth scrolling, you don’t see your initially visible content move away, it is just gone instantly.)
So you simply need to suppress the default action of your anchor links in your click event handler:
mainNavButton.click(function (e) {
e.preventDefault(); // prevent event default action
// … rest of your code
– and the effect of the page ”jumping” to the anchor position is gone.
https://jsfiddle.net/pphfstos/6/
I'm using angularjs to develop a web application. I have several nested div. Each of them correspond to an item that the user can select.
A good example of my div display is in the official angularJs documentation :
http://plnkr.co/edit/qncMfyJpuP2r0VUz0ax8?p=preview
In my code each div have a ng-click="gotoAnchor(x)" event so when I click on a div if it is partially hidden, it pull it up on the page and the user can see all the clicked div.
But I have a header in my page so the first div with an anchor and a click event is not directly at the top of the page. And if I click on the first div, it will scroll and the header won't be visible.
So my question is, is there a way to activate the anchor only if the div isn't fully displayed on the screen ?
If you have an other solution than anchors, I take it.
Thank you in advance.
If I understand your question correctly the issue is that when using $anchorScroll your header is either
a: Being covered up by the div scrolled into frame,
or
b Partially covering up the div that is scrolled into frame.
Either way there are two solutions you should review:
First
make sure you're employing CSS to properly layer your elements, your header (if fixed) should have a z-index that supersedes your divs.
.header { position: fixed; top:0; width: 100%; z-index: 99}
.content { position: relative; margin-top: 10px; z-index: 1;}
REMEMBER Z-index only works on positional elements (See ref)
Second
Employ $anchorScroll.yOffset to make sure your scroll distance is bumped down to compensate for the header height. As seen in the Angular docs, you can use this method in your application:
.run(['$anchorScroll', function($anchorScroll) {
$anchorScroll.yOffset = 50; // always scroll by 50 extra pixels
}])
Update 50 to be the pixel height of your header.
Regarding visibility
There are a few great libraries and directives for checking the visibility of an element - try https://github.com/thenikso/angular-inview as you can specify whether you want to enable an action when only the top, bottom or none of the div is visible.
Note Posistioning the first div correctly on the page will prevent any scroll from being necessary as seen in this plunkr.
I have a parent div that has a height set on it.
There are child divs inside of it with initial visibility turned off.
When I make it visible, the parent div expands vertically. I dont want that.
Background:
I'm using DataTables, with the scroller and filterColumn plugins.
The header of my table has an action on it assigned by jQuery that when I click on the a column header, a div is to appear below it and show some content.
Issue is, when it appears, the header div expands.
I've tried overflow: hidden, auto, etc, but the closest i can get is the scrolling body seems to cover the floating div. I also set the z-index to above the scroller, but that doesnt do anything either.
Any suggestions?
You can give the parent div a fixed height
.parent {
height: 400px;
}
and make your child div have absolute position
.child {
position: absolute;
}
use position:absolute on the element being shown to remove it from the page's flow. this will prevent it from affecting the width of the parent div.
I am editing a Squarespace template and would like to create a sticky navigation sidebar.
There's a Squarespace field where I can enter "Custom CSS."
I already have the sidebar, but how do I modify the CSS to make it stick? I want it to remain visible when I scroll below the fold.
My pageBodyWrapper div is centered (auto/auto) and contains both the contentWrapper div and the sidebar1Wrapper div, on the right.
I have tried
#sidebar1Wrapper
{
position:fixed;
}
with either a left or right value in px or %, but whenever I change window size, the sidebar is either going away from the content or overlaps with it.
How do I prevent this from happening?
Can I define my fixed position relative to the contentWrapper div?
Thank you for your help!
Here's the site I am talking about: Last Wave Film.
Unfortunately that functionality is not yet built into css. It is done with javascript. Essentially the javascript detects when the page has scrolled to the top of and then sets the sidebar to position: fixed.
Here's a solution that uses the jQuery library: http://css-tricks.com/persistent-headers/
You can make the sidebar fixed using css and it will be permanently fixed within the browser window.
.sidebar1Wrapper {
position: fixed;
top: 20px;
right: 40px;
}