I have been building my site on Bootstrap for the first time and I'm having a problem that I can't find a solution of this. When I add some content and if its large and big enough to add a scroll bar in browser, whole page content moves towards left.
In simple words, If there is scrollbar, page content is moving to left like 17px and if not, it works okay. I don't want to add a perm scrollbar here like
overflow-y: scroll;
and if I add
width: 100vw;
It works fine and contents stays at its position even with scrollbar but if there is a vertical scroll bar, horizontal scroll appears too for no reason.
You have couple of solutions:
You can show your scroll permanently and style it accordingly to be a part of your page:
html {
overflow-y: scroll;
}
You can add:
padding-right: 40px;
as 40px is what I have heard is the max scroll size that you can get.
Create a parent div that will have all of your contents, then create a child that is slightly smaller, make it the way that changing parent size will not make child size to change.
You can create JS function that will detect if the scroll is displaying on the page, and it would change the margin settings.
You can use media queries to tackle the problem.
Related
I am working on a site with a header at the top and a main content area. The header does not scroll but the main area does. This means that I have a scrollbar to the right of the main area but not to right of the header and they do not line up:
In this image the red bar is the content and the orange bar is the centre section of the header that should be in line with the content.
These are both aligned using this css:
.center-content {
width: 100%;
max-width: 800px;
margin: 0 auto;
}
What is the best approach for this?
I was thinking of just adding the scrollbar permanently but I don't really want to do this. I could then just add some padding to the left of the main section to re-center it. Alternatively I could add padding to the right of the header.
Questions:
How would I change the style of the header based on wheather the main section has a scrollbar?
How would I add padding to the main section based on wheather it has a scrollbar?
How to I get the width of the scrollbar? Is this guaranteed to be the same across all browsers (I need to cater for mobile as well)
I have created a JSbin for this that demonstrates the issue.
I am using the material-design-lite style sheets for this.
You will not want to change any styles based on the scrollbar - I think that's too complicated and it would almost certainly involve javascript. Scrollbars are also not consistent across browsers/mobile. A better option would be to fix the header to the top of the page, and make the content div's margin-top equal to the header's height. Then the scrollbar, when it appears, will be to the right of the entire page. See an example here:
http://output.jsbin.com/xuroyaceli/#
Resize the window to see how it looks with a scrollbar.
I've created a website with a content-width of 800px.
However, when my user uploads a picture with a width of 900px, the site is totally out of order.
Is there a way to add a slider or scrollbar instead of the div getting bigger, when the images are too large for the website? If not, I think I have to resize the uploaded images..
Thanks in advance.
put style="overflow:auto;" on your div then it will produce a scroll bar when image is larger than your space
I assume that because you're talking about width, that you're wanting the content width to maintain at 800px and then default to scroll if content (in this case an image) is > 800px.
Perhaps you could take advantage of the overflow-x: scroll; property in CSS to only scroll horizontally. overflow: auto; may add the vertical scroll as well when not required.
You may need to supply a little bit of the code that you are using so we can figure out the problem, but what you could use is:
overflow: hidden;
That will stop anything being wider than your 800px content container.
When making a site that doesn't require scrolling, the content is centred. I have placed all page content within a div : #Pagecontent, which has its margins set to auto so that the width of the screen does not matter - the content is always in the centre.
However, when the page requires scrolling because of the length of the content, all of the content on the page shifts slightly. How can I prevent this, as I find it annoying.
Hope this is an okay question. Cheers!
you can show the overflow all time by css overflow:scroll so the page wont move on the scroll bar
The HTML with overflow: scroll will force the page to always show the scrollbar whether it needs it or not.
html{
overflow:scroll;//for both vertical and horizontal
/* overflow-y: scroll; // for only horizontal
overflow-x: scroll; // for only vertical */
}
But there is no way you can prevent scroll bars appearing on any normal site because it is 100% dependent on the visitors screen resolution and/or preference for a maximised window or not.
The only way to prevent scroll bars shifting your page contents is to disable them via javascript, which may make some of your page unreachable by some visitors
Good read: How to prevent scrollbar from repositioning web page?
My page layout looks something like this:
<style type="text/css">
#content-wrap
{
margin: 0 auto;
width: 800px;
}
</style>
<div id="content-wrap">
</div>
You'll notice that the content-wrap div shifts its position a tad bit when the vertical scrollbar appears. One scenario is when the browser starts to progressively render the page without displaying the vertical scrollbar, then determines that a scrollbar is needed because the content is taller than the "fold". This shifts the div about 10px towards left.
What is the best way to tackle this problem without forcing the browser to always display the scrollbar?
I'm afraid the best way to solve this is to force the scroll bar to be visible at all times with html {overflow-y: scroll;}. The problem you have is that the "available area" shrinks with say 10 px when the scroll bar appear. This cause the calculated margin on your left side to shrink with half the width of the scroll bar, thus shifting the centered content somewhat to the left.
A possible solution might be to calculate the margin with JavaScript instead of using margin: 0 auto; and somehow compensate for the "lost" pixels when the scroll bar appear, but I'm afraid it will be messy and the content will probably move a little bit anyway while you calculate and apply the new margin.
If your site is "responsive" (reacts to width):
Step 1: Add width: 100vw to a wrapper element. This makes it as wide as the viewport, ignoring the appearance of a scrollbar.
Step 2: Add overflow-x: hidden to the content element. This will remove the horizontal scrollbar (created when vertical scrollbar appears, to allow the user to "look under" it).
"wrapper element" is in our case referring to another div around your #content-wrap
Will work for your case too, tested:
<style type="text/css">
body {
overflow-x: hidden;
}
#wrap-wrap {
width: 100vw;
}
#content-wrap
{
margin: 0 auto;
width: 800px;
}
</style>
<div id="wrap-wrap">
<div id="content-wrap">
</div>
</div>
Make sure nothing useful on your page is wide enough to get caught under the scrollbar.
For example, you can ensure that the sum of (horizontal padding + border + horizontal margin) of the content element is wider than the scrollbar).
If your site is fixed width + centered (your case):
html {
margin-left: calc(100vw - 100%);
margin-right: 0;
}
This will add a left margin equal in width to the scrollbar when it appears. Which is 0 when it does not. Taken from here, but tested.
You must use:
html {
overflow-y: overlay;
}
Only supported by WebKit (Safari) or Blink (Chrome, Opera)
Use jquery and put this in the start of your tag:
<script type="text/javascript">
function checkheight(){
if ($(document).height() > $(window).height()) {
//that is if there is vertical scrollbar
document.getElementById('yourcenteredcontainer').style.paddingLeft='8px';
//8px because the scrollbars are (?always?) 16px
}else{
document.getElementById('yourcenteredcontainer').style.paddingLeft='0px';
}
}
</script>
and call the function checkheight(); in the end of your tag plus wherever you have onclick (or other) events that make the page longer or shorter in height.
If you can use Javascript, you can set the width of the content-wrap to the inner width of the window minus the standard width of a scrollbar.
You will run into some problems though.
The user will have to have Javascript enabled
You don't know what the width of the vertical scrollbar is, especially if the scrollbar isn't there! So you will have to guess. 20px seems like a good guess.
Different browsers have different ways of telling you want the inner width of the window is.
So if you can live with all that, you can do something like this (in pseudo code)
if window.innerWidth is defined :
set the width of the div to window.innerWidth-20px
else if we're running on Internet Explorer :
set the width to document.documentElement.offsetWidth-20px
otherwise :
we're out of luck and we best leave the width as is.
First I would recommend optimizing the HTML so that it won't take so long to load/render. If load/render is fast the scrollbar won't appear "too late". What is it that takes long to load/render? Check the network tab in chrome debug tools (F12). Do an audit in Chrome debug tools.
There are multiple things that could make the document "reflow", and the scrollbar appear even though the browser could have known the necessary measurements right from the start. Are you using tables for layout - don't! They may need multiple passes of rendering. Do you have images without width/height specified? Then the document will need to be rerendered when each image loads. Specify <img ... style="width: ..px; height: ..px">. Is the CSS sane and efficient?
If you can't get load/rendering speed down I think your best bet is to not use the browser's scrollbar if javascript is enabled. That way you can control it and place it absolutely positioned so that it won't affect horizontal positioning.
Let your slider start of with display: none. Monitor dom ready event as well as image load events as well as window resize events. When the page has been loaded, images have been loaded and when window gets resized just run the same function every time. It would determine if the scrollbar is needed and either display it or hide it.
You could use JQuery UI Slider for example and set it's maxValue to $(document).height() - $(window).height(), monitor the slider change event and then scroll the body to the value of the slider and so forth.
If javascript is disabled the fallback will be the regular scrollbar and there's nothing you can do about the slight horizontal shift then.
But really I think the problem of the horizontal shift is too small to spend time fixing with a custom scrollbar, and check that it actually works well on all platforms etc. Do HTML/CSS optimizations first.
You can try this solution: https://stackoverflow.com/a/67213174/14302216
But the widths can't be relative. Probably, width:100vw will work for the parent, but I'm not sure how you would set the child width. I'm afraid calc(100vw-16px) will not work. But if you can set like widht:800px for the child, it will be fine!
I'm trying to set up a page so that the navigation bar has a background that extends horizontally past the edges of the window, but the actual content of the page remains within a 960px wide container.
Here's a link to what I've got so far, it looks the way I want it to but there's a problem.
http://jsfiddle.net/pFDDV/3/
The problem is that the page will still scroll horizontally to the end of the over extended div, on the right side. It DOESN'T have this problem going left, only right (which I assume is due to the way elements deal with negative margins/positioning). I thought I might be able to just get away with:
body {
width: 100%;
overflow-x: hidden;
}
Which hides the bottom scroll bar, but you can still scroll right with the arrow key, and if you resize the page smaller than the 960px of actual content, you don't get a horizontal scrollbar like you should.
Is there any way I can make the page ignore the width of just that one div?
I'm 99.9% sure I saw this work somewhere, but I can't remember where, and research on the top/left, bottom/right rules of negative margin/positioning leads me to believe this just might not work. Any ideas?
Also: I know I could probably do this with a repeating background image, but I'm trying to avoid using images.
You can use position:absolute & write like this:
#mWrapper {
background: none repeat scroll 0 0 red;
height: 30px;
left: 0;
position: absolute;
right: 0;
}
check this http://jsfiddle.net/sandeep/pFDDV/5/
Are you expecting like this
http://jsfiddle.net/pFDDV/6/