I've run into what seems like a very specific bug in IE9 layout rendering, where the height of a div with box-sizing: border-box and a min-height is calculated incorrectly when the inner content is resized.
Given the following markup and CSS:
<div class="constrained">
<div class="content">Content</div>
</div>
* { box-sizing: border-box; }
.constrained {
border: 1px solid blue;
min-height: 300px;
padding: 10px;
overflow-x: auto;
}
The div.constrained renders appropriately at 300px height (278px inner height) when the page loads. When new content is injected into div.content via JavaScript, the div.constrained container grows to 322px height, as if the box-sizing were no longer applied.
JSFiddle demonstration:
http://jsfiddle.net/eafztwb2/16/
This only occurs with overflow values of auto, visible or scroll. Setting the overflow-x to hidden, or inherit (so long as inherit doesn't end up evaluating to one of the former) does not show the problem.
This isn't a question so much as knowledge-sharing, but I'd be interested in solutions that work around this while still allowing overflow-x: auto.
This definitely does look like a layout bug, but fortunately the work-around is pretty simple. Apply a height to your element, along with the min-height. For example:
.constrained {
height: 100%;
min-height: 300px;
}
The issue exists in Internet Explorer 10 as well. This solution works for both IE 9 and 10. Internet Explorer 11 appears to have resolved this on its own - I was unable to repro the issue there.
Fiddle: http://jsfiddle.net/eafztwb2/23/
Related
I don't use Bootstrap or reset.css/reboot.css, I am trying to built a website with generic css.
I am doing pretty basic things but I get "This element is causing an element to overflow" literally everywhere. I haven't done layouts without any css framework for quite some time and I can not find anything about this issue. Even a br is causing an overflow! What is this? I don't see any scorlls and everything looks just like I expect. This message is just annoying.
I inspected a little bit more and discovered that images are causing this. But I have
.img-responsive, .responsive {
height: auto;
max-width: 100%;
}
.img-thumbnail, .thumbnail {
padding: 0.25rem;
background-color: white;
border: 1px solid #dee2e6;
border-radius: 0.25rem;
box-sizing: border-box;
}
And if I delete this image, overflow message will go away for a few elements below. Can anybody tell me what's going on?
This will help.
html {
width: 100%;
}
From MDN:
A scroll container is created by applying overflow: scroll to a container, or overflow: auto when there is enough content to cause overflow. The Firefox DevTools make it easy to discover both scrollable elements and any elements that are causing overflow.
In the HTML Pane, a scrollable element has the scroll badge next to it...
You can toggle the scroll badge to highlight elements causing an overflow, expanding nodes as needed to make the nodes visible...
You will also see an overflow badge next to the node causing the overflow.
So, if the container has content that is overflowing, it'll be marked with overflow, as you've noticed. Either adjust the content to not overflow, or adjust the container itself to allow for the content without overflowing. The DevTools badges you've noted can be used to identify which items are overflowing which container.
I suggest to create a reset in html
/* ------------ Reset CSS ------------ */
* {
box-sizing: border-box;
margin: 0;
padding: 0;
width: 100vw;
height: 100vh;
}
When the Child dictates the width of a Parent which has overflow: auto, Firefox doesn't allow space for the added width of a scrollbar (15px) which leaves the Child getting cut off and an overflow-x to appear on the Parent.
What's the best way to fix this issue?
https://codepen.io/rhysyg03/pen/wrKQJG
.content {
position: absolute;
overflow-y: auto;
min-width:150px;
max-height: 300px;
padding: 8px;
background:white;
border:1px solid rgba(0,0,0,.12);
}
For example, adding padding-right: 15px fixes the issue but then leaves the other browser's with an extra 15px.
Or adding a fixed width to the Parent fixes issue but then you're bound to a fixed width restriction and I want to leave the Parent flexible.
Or adding overflow-x: hidden hides the scrollbar, but leaves the Child cut off.
Update: display: flex on Parent fixes the issue for regular widths (ie: an image) but not the widths set by text with whitespace: nowrap.
Thanks.
Firefox:
Chrome:
you can use #-moz-document to write some styles could be recognized by firefox only. see this: https://developer.mozilla.org/en-US/docs/Web/CSS/#document.
hopes helpful.
Say you have this:
html, body {margin: 0; padding: 0}
.box {width: 100vw; height: 100vh}
<div class="box">Screen 1</div>
You'll get something that fills the screen, no scrollbars. But add another:
<div class="box">Screen 1</div>
<div class="box">Screen 2</div>
You get not only vertical scrollbars (expected), but a slight horizontal scroll.
I realize you could omit the width, or set it to width: 100%, but I'm curious why this is happening. Isn't 100vw supposed to be "100% of the viewport width"?
As already explained by wf4, the horizontal scroll is present because of the vertical scroll. which you can solve by giving max-width: 100%.
.box {
width: 100vw;
height: 100vh;
max-width:100%; /* added */
}
Working Fiddle
scrollbars will be included in the vw so the horizontal scroll will be added to allow you to see under the vertical scroll.
When you only have 1 box, it is 100% wide x 100% tall. Once you add 2, its 100% wide x 200% tall, therefore triggering the vertical scrollbar. As the vertical scrollbar is triggered, that then triggers the horizontal scrollbar.
You could add overflow-x:hidden to body
html, body {margin: 0; padding: 0; overflow-x:hidden;}
.box {width: 100vw; height: 100vh; background-color:#ff0000}
.box2 {width: 100vw; height: 100vh; background-color:#ffff00}
http://jsfiddle.net/NBzVV/
I had a similar problem and came up with the following solution using JS and CSS variables.
JS:
function setVw() {
let vw = document.documentElement.clientWidth / 100;
document.documentElement.style.setProperty('--vw', `${vw}px`);
}
setVw();
window.addEventListener('resize', setVw);
CSS:
width: calc(var(--vw, 1vw) * 100);
1vw is a fallback value.
If you're working in a framework (ASP.NET for example) where there's possibly a parent element wrapping around the html, then setting the html's max-width to 100% will solve the problem without using the "band-aid" solution overflow-x: hidden.
html {
max-width: 100%;
}
The reason why 100vw is causing a horizontal scrollbar is well explained in other responses: 100vw counts the width of the vertical scrollbar to the html itself. I think this is a little absurd, but it is what it is, you know :)
Update: As of Chrome version 66, I cannot reproduce the behaviour reported by question anymore. No workaround appears to be needed.
Original Answer
This is actually a bug as reported in this answer and the comments above.
While the workaround in the accepted answer (adding .box {max-width: 100%;}) generally works, I find it noteworthy that it does not currently work for display:table (tested in Chrome). In that case, the only workaround I found is to use width:100% instead.
Broken Fiddle with display:table
Working Fiddle with display:table and width:100%
to get rid of the scrollbar width included in vw i had to do this:
html, body {
overflow-x: hidden;
height: 100vh;
}
*,
html,
body {
margin: 0;
padding: 0;
overflow: hidden;/*add This*/
}
/*and enjoy ^_^ */
You can try:
*{ box-sizing: border-box}
the reason why the content is flowing out of screen is maybe you have extra padding or border on the div and it cause the content out of the broswer
I have a div with lots of content in it, and trying to set a width to be 100% of the parent element. This div also uses a padding, so I thought I should be setting the width to auto.
But for some reason it always expands past the parent width. I even have overflow set to scroll.
What I want is the div to have a scroll bar (only horizontal), and its width to fit the parent width.
Does anyone know how I can fix this?
100% width of its parent, with padding:
Given that the padding you mention is applied to the 100% wide element, the problem is within the box model that browsers use. If you apply 100% width and some padding, the element will get width + padding as its complete width, thus causing it to become too large. There are a few ways to solve this:
CSS3 introduces a new property called box-sizing, by setting it to border-box, the padding will be added within the given width of the element, instead of adding to the width causing the element to become "to big". (Notice the lack of support by older browsers).
I believe it would be possible to use left: 0; right: 0; instead of using width: 100%;. In that case you can add padding, without the element becoming to wide.
The second option in practice:
<!-- The markup -->
<div class="parent">
<div class="child">Child</div>
</div>
/* The CSS */
.parent {
width: 200px;
height: 200px;
position: relative;
background-color: #666;
}
.child {
position: absolute;
left: 0;
right: 0;
padding: 10px;
background-color: #888;
}
Here is a working example of the second option: http://jsfiddle.net/mGLRD/
Horizontal scroll-bar:
To get a horizontal scroll-bar, you will have to look in to the overflow-x CSS-property. By setting it to scroll, you will see a disabled scrollbar when there is no content to scroll, so the scrollbar is always visible. Your other option is to set it to auto, where the scrollbar will become visible if needed (may vary between different browsers).
Try:
div#content {
width:auto;
padding:20px;
overflow-x:auto;
}
See my demo: http://jsfiddle.net/HRRsU/3/
box-sizing: border-box;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
http://www.w3schools.com/cssref/css3_pr_box-sizing.asp
With HTML/CSS, how can I make an element that has a width and/or height that is 100% of it's parent element and still has proper padding or margins?
By "proper" I mean that if my parent element is 200px tall and I specify height = 100% with padding = 5px I would expect that I should get a 190px high element with border = 5px on all sides, nicely centered in the parent element.
Now, I know that that's not how the standard box model specifies it should work (although I'd like to know why, exactly...), so the obvious answer doesn't work:
#myDiv {
width: 100%
height: 100%;
padding: 5px;
}
But it would seem to me that there must be SOME way of reliably producing this effect for a parent of arbitrary size. Does anyone know of a way of accomplishing this (seemingly simple) task?
Oh, and for the record I'm not terribly interested in IE compatibility so that should (hopefully) make things a bit easier.
EDIT: Since an example was asked for, here's the simplest one I can think of:
<html style="height: 100%">
<body style="height: 100%">
<div style="background-color: black; height: 100%; padding: 25px"></div>
</body>
</html>
The challenge is then to get the black box to show up with a 25 pixel padding on all edges without the page growing big enough to require scrollbars.
I learned how to do these sort of things reading "PRO HTML and CSS Design Patterns". The display:block is the default display value for the div, but I like to make it explicit. The container has to be the right type; position attribute is fixed, relative, or absolute.
.stretchedToMargin {
display: block;
position:absolute;
height:auto;
bottom:0;
top:0;
left:0;
right:0;
margin-top:20px;
margin-bottom:20px;
margin-right:80px;
margin-left:80px;
background-color: green;
}
<div class="stretchedToMargin">
Hello, world
</div>
Fiddle by Nooshu's comment
There is a new property in CSS3 that you can use to change the way the box model calculates width/height, it's called box-sizing.
By setting this property with the value "border-box" it makes whichever element you apply it to not stretch when you add a padding or border. If you define something with 100px width, and 10px padding, it will still be 100px wide.
box-sizing: border-box;
See here for browser support. It does not work for IE7 and lower, however, I believe that Dean Edward's IE7.js adds support for it. Enjoy :)
The solution is to NOT use height and width at all! Attach the inner box using top, left, right, bottom and then add margin.
.box {margin:8px; position:absolute; top:0; left:0; right:0; bottom:0}
<div class="box" style="background:black">
<div class="box" style="background:green">
<div class="box" style="background:lightblue">
This will show three nested boxes. Try resizing browser to see they remain nested properly.
</div>
</div>
</div>
The better way is with the calc() property. So, your case would look like:
#myDiv {
width: calc(100% - 10px);
height: calc(100% - 10px);
padding: 5px;
}
Simple, clean, no workarounds. Just make sure you don't forget the space between the values and the operator (eg (100%-5px) that will break the syntax. Enjoy!
According the w3c spec height refers to the height of the viewable area e.g. on a 1280x1024 pixel resolution monitor 100% height = 1024 pixels.
min-height refers to the total height of the page including content so on a page where the content is bigger than 1024px min-height:100% will stretch to include all of the content.
The other problem then is that padding and border are added to the height and width in most modern browsers except ie6(ie6 is actually quite logical but does not conform to the spec). This is called the box model. So if you specify
min-height: 100%;
padding: 5px;
It will actually give you 100% + 5px + 5px for the height. To get around this you need a wrapper container.
<style>
.FullHeight {
height: auto !important; /* ie 6 will ignore this */
height: 100%; /* ie 6 will use this instead of min-height */
min-height: 100%; /* ie 6 will ignore this */
}
.Padded {
padding: 5px;
}
</style>
<div class="FullHeight">
<div class="Padded">
Hello i am padded.
</div
</div>
1. Full height with padding
body {
margin: 0;
}
.container {
min-height: 100vh;
padding: 50px;
box-sizing: border-box;
background: silver;
}
<div class="container">Hello world.</div>
2. Full height with margin
body {
margin: 0;
}
.container {
min-height: calc(100vh - 100px);
margin: 50px;
background: silver;
}
<div class="container">Hello world.</div>
3. Full height with border
body {
margin: 0;
}
.container {
min-height: 100vh;
border: 50px solid pink;
box-sizing: border-box;
background: silver;
}
<div class="container">Hello world.</div>
This is one of the outright idiocies of CSS - I have yet to understand the reasoning (if someone knows, pls. explain).
100% means 100% of the container height - to which any margins, borders and padding are added. So it is effectively impossible to get a container which fills it's parent and which has a margin, border, or padding.
Note also, setting height is notoriously inconsistent between browsers, too.
Another thing I've learned since I posted this is that the percentage is relative the container's length, that is, it's width, making a percentage even more worthless for height.
Nowadays, the vh and vw viewport units are more useful, but still not especially useful for anything other than the top-level containers.
Another solution is to use display:table which has a different box model behaviour.
You can set a height and width to the parent and add padding without expanding it. The child has 100% height and width minus the paddings.
JSBIN
Another option would be to use box-sizing propperty. Only problem with both would be they dont work in IE7.
Another solution: You can use percentage units for margins as well as sizes. For example:
.fullWidthPlusMargin {
width: 98%;
margin: 1%;
}
The main issue here is that the margins will increase/decrease slightly with the size of the parent element. Presumably the functionality you would prefer is for the margins to stay constant and the child element to grow/shrink to fill changes in spacing. So, depending on how tight you need your display to be, that could be problematic. (I'd also go for a smaller margin, like 0.3%).
A solution with flexbox (working on IE11): (or view on jsfiddle)
<html>
<style>
html, body {
height: 100%; /* fix for IE11, not needed for chrome/ff */
margin: 0; /* CSS-reset for chrome */
}
</style>
<body style="display: flex;">
<div style="background-color: black; flex: 1; margin: 25px;"></div>
</body>
</html>
(The CSS-reset is not necessarily important for the actual problem.)
The important part is flex: 1 (In combination with display: flex at the parent). Funnily enough, the most plausible explanation I know for how the Flex property works comes from a react-native documentation, so I refer to it anyway:
(...) flex: 1, which tells a component to fill all available space, shared evenly amongst other components with the same parent
To add -webkit and -moz would be more appropriate
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box;
Frank's example confused me a bit - it didn't work in my case because I didn't understand positioning well enough yet. It's important to note that the parent container element needs to have a non-static position (he mentioned this but I overlooked it, and it wasn't in his example).
Here's an example where the child - given padding and a border - uses absolute positioning to fill the parent 100%. The parent uses relative positioning in order to provide a point of reference for the child's position while remaining in the normal flow - the next element "more-content" is not affected:
#box {
position: relative;
height: 300px;
width: 600px;
}
#box p {
position: absolute;
border-style: dashed;
padding: 1em;
top: 0;
right: 0;
bottom: 0;
left: 0;
}
<div id="box">
<p>100% height and width!</p>
</div>
<div id="more-content">
</div>
A useful link for quickly learning CSS positioning
This is the default behavior of display: block The fastest way that you can fix it in 2020 is to set display: 'flex' of parent element and padding e.g. 20px then all its children will have 100% height relative to its height.
Border around div, rather than page body margin
Another solution - I just wanted a simple border around the edge of my page, and I wanted 100% height when the content was smaller than that.
Border-box didn't work, and the fixed positioning seemed wrong for such a simple need.
I ended up adding a border to my container, instead of relying on the margin of the body of the page - it looks like this :
body, html {
height: 100%;
margin: 0;
}
.container {
width: 100%;
min-height: 100%;
border: 8px solid #564333;
}
<style type="text/css">
.stretchedToMargin {
position:absolute;
width:100%;
height:100%;
}
</style>