How can you prevent ::-webkit-scrollbar from pushing over elements - html

I'm attempting to use webkit's custom scrollbar and I'd really like to prevent it from pushing over the div's next to it. I've tried hacking it by using an image sprite positioned to the right, but it goes under the scrollbar's trackbar. I've also attempted to hide the trackbar, set the opacity, negative margins/padding, and z-index—nothing appears to be working.
The desired effect would be to have the element (grey bar in image below) to continue to the edge of the container and not stop at the scrollbar track.
How can you prevent ::-webkit-scrollbar from pushing over elements?
The same question has been asked, but no proper answer has been found yet (do not flag as a duplicate).

It can be done by overflow: overlay. It is alternative for overflow: auto

Related

Using overflow along with sticky items in a Bootstrap layout on Firefox sometimes creates unwanted vertical space

This is a very weird and specific bug that only happens on Firefox, and I'm having trouble narrowing it down.
I have a page with a sticky menu followed by a fluid container.
In order to remove all padding from the container while keeping everything else untouched (like column gutters), I had to add this CSS to it:
#main-container {
padding: 0;
overflow-x: hidden;
}
This is the only simple way I found to do that, and it works.
If you remove the overflow property, some horizontal scrolling appears.
See https://stackoverflow.com/a/35192643/5845942
But when I pin the menu, scroll until its position becomes fixed, and interact with certain items on the page, vertical space appears on the page, between the menu and the container.
This happens when triggering CSS transitions and other JS DOM manipulations.
Here is a jsfiddle: https://jsfiddle.net/vctls/mac2Ls0d/35/
A screenshot:
And a video:
https://imgur.com/a/28KhPEY
Again, this only happens on Firefox. Chrome handles the layout without any issue.
It doesn't happen either if the menu isn't pinned, or if you remove the overflow property from the container.
This seems to be a Firefox bug. I found a similar issue was already reported:
https://bugzilla.mozilla.org/show_bug.cgi?id=1618029
I'm trying to find a workaround.

In Safari, hovering over SVG elements causes a scrolled element to reset its scroll position?

I have a website that is exhibiting bizarre behavior that I don’t understand. I’m unable to tell if I’ve run into a bug or what I might be doing wrong.
The page has two elements, nav and main that each have overflow-y: scroll set. This is so they can be scrolled independently of one another. If I scroll the main element, and then hover over the pagination buttons at the bottom, the main element will jump back to the top (lose its scroll position). It also happens if I hover over the Octocat/GitHub symbol in the navigation on the right.
The common thread here is that the pagination buttons and the GitHub symbol on the right both have svg elements. If I get rid of the svg element the bug doesn’t happen. Also if I remove overflow-y: scroll from the main element the bug does not occur.
I’ve also noticed that the issue might be somehow related to having height: 100% set on the <html> tag. When it’s removed the issue no longer occurs, but unfortunately it can’t be removed otherwise the full width/height layout doesn’t work correctly.
Can anyone tell me why this is happening, if it’s a bug in Safari, and/or how to fix it? Thanks!
You can fix this by adding the following to body where your grid rules are defined. Sadly, I have no idea why this solves the issue.
body {
…
grid-auto-rows: 1fr;
}
After spending hours and hours on this, the only way I could figure out how to fix it was to switch from CSS grid to flexbox. 🤷🏼‍♂️
This is the diff that fixed it, if you’re curious.
This is a bug related to safari version 12.1, which is fixed in Safari Technological Preview.
https://bugs.webkit.org/show_bug.cgi?id=197189
However as a workaround in the mean time.
Can you try
overflow-x:hidden, overflow-y: scroll,
height between 50 to 95vh for the specific container depending on your surrounding elements. This is going to have minimal safari jump on hover and probably empty space at the bottom.
Even after Safari bug is fixed, seems that the bug still occurs on some other scenario. I successfully reproduced a similar behavior on Fluent UI dropdown: https://github.com/microsoft/fluentui/issues/23668
The workaround in my case was to change dropdown item height from "auto" to "100%".

Rendering bug in Firefox? Opacity transition below the text element

I'm developing a simple opacity slider for my site and I've encountered a weird rendering bug (?) that happens only in Firefox (Chrome and Opera handle it perfectly).
The problem is while slides change each other, there's horizontal line appearing over them:
Obviously it has something to do with arrows which switch images. If I set display: none to them, there's no line appearing.
Arrows are simple > < in spans, and they have text-shadow. If I remove text-shadow from them, the line gets thinner:
Spans with arrows are positioned absolutely inside divs which taking half of slide container each. These divs are inside other div, which is sibling to slides and has z-index:1 to be over them. If I set right/left position for spans so they will just a little superpose image, or if I make divs thinner (for example, 40% instead of 50%) for the same purpose, the line disappears:
It may seem like it's related to spans' width, but setting max-width and display: block doesn't help too.
How can I get rid of this weird line? Maybe there's CSS hacks for it? You can check slider yourself here. Thanks!
So I've removed spans and instead put arrows just inside divs. I've vertically centered them using :before CSS hack from this answer. No weird lines and works like charm, though I've had to add some nbsp's before and after arrows so they would not be just on the edges of slide container. Well, a bit dirty but it's fine for now. Works even in IE10 and I don't need more.

Iframe floating around on IOS

I have an iframe wrapped with a iframe-container div which is taking 25% of the screen from right, all the elements are inside the iframe.
There is a textbox input field in iframe, upon touch, all elements are behaving properly and the windows adjusts as per the keyboard of IPAD however the moment I start typing, i.e any character is being added in the text input the whole layout of iframe-container shifts towards left and then after few more character inputs disappears completely.
Refer to the image below:
Screen one (this is the desired UI all the time)
Screen Two (Messed up UI after any character is entered)
Even this layout disappears when more characters are added.
I went through few solved issues of iframe with IOS devices and followed few concepts and solutions from there.
Iframe in this case does not have any scroll added to it. A div inside the iframe is being scrolled
Have also tried adding -webkit-overflow-scrolling: touch; to the scrollable div and this did not helped either.
Was using VH for height, tried removing them and used PX no luck there too.
NOTE: A lot of jQuery is being used of UI adjustments, not particularly for iframe and the cross button basically toggles the iframe-wrapper div (simple hide and show).
Thanks!!
EDIT
I have found the problem, now I need the solution for this.
Safari is automatically adding background-position property and setting it to Initial, manually override to no-repeat fixes the problem.
I tried adding jQuery css property for background-position but I guess it is somehow not being applied.
This is weird but I discovered 0 property was not working and the moment I added left and top instead of bottom: 0 everything was fine!!

html overflow issue

I already asked this question, but I didn't explain it too well, so I removed the thread. Now I have made an example in jsfiddle to show my problem:
http://jsfiddle.net/6APjt/
I want a page with a header and below that a canvas. This canvas expands when I click on the zoom button. When this canvas expands there is an overflow that I want to be visible with scrolling. This is because I want the header of the page visible all the time, also when I scroll to the bottom of the canvas.
In the example you see that i have used a div with style overflow set to hidden (to prevent that when you scroll, the whole pages is scrolled). I tried to solve this by adding another div in this div with the property overflow set to scroll. This solves the vertical scroll, but I can't scroll horizontally.
Your problem is in your javascript!
testcanavs.height *= 1.25;
There is a spelling error in there, change it to this and it will work
testcanvas.height *= 1.25;
EDIT: Try setting height, or max-height on your containing div. See this fiddle
Your div will grow since height: auto is the default. Set it manually.