Why isn't parent div width stretching to width of child - html

Look at this jsfiddle:
http://jsfiddle.net/w9k2sz52/
#content {
background: #ff0000;
min-height: 200px;
}
.container-fluid {
min-width: 2000px;
}
<div id="content">
<div class="container-fluid">
<div class="row">
<div class="col-xs-12">
<h1>Some title here</h1>
</div>
</div>
</div>
</div>
Why is the width of #content not stretching to be 2000px instead of being the width of the viewport? What do I need to do to make content stretch so that no matter what min-width is set on container-fluid #content will always stretch to fit it

Set #content to inline-block, and then set min-width to 100%. Note that setting width to 100% won't have the desired affect.
#content {
background: #ff0000;
min-height: 200px;
min-width: 100%;
display:inline-block;
}

Adding a float will make the parent element the same width as the child:
#content {
background: #ff0000;
min-height: 200px;
float: left;
}

#content {
background: #ff0000;
min-height: 200px;
display: inline-block;
}

You could use
width:auto;
This should mean it stretches to the width of its contents.
EDIT:
The min-width property in CSS is used to set the minimum width of a specified element. The min-width property always overrides the width property whether followed before or after width in your declaration. Authors may use any of the length values as long as they are a positive value.
You need to set a max-width or width with it. Say you had a width of 80% and a min width of 400px, it will be no smaller then 400px even if 80% of the page is 200px.
You could give the content a min width forcing the div to be auto and be no smaller then the content.

Could #content determine the width, while .container-fluid expands to fill it? Instead of the other way around.
#content {
background: #ff0000;
min-height: 200px;
width:2000px;
}
.container-fluid {
width: 100%;
}

By adding
position:absolute
to your CSS declaration for #content, you force the CSS interpreter to check what elements are inside #content, therefore achieving desired effect.
The problem with absolute positionning is that it remove the element from the natural workflow of the document. Therefore, you are better wrapping the element unto which you want to apply absolute positionning inside another element. This one will stay in the natural workflow of the DOM.
See this jsfiddle: https://jsfiddle.net/7Ls47d83/4/
Google "CSS box model" for more interesting articles and post about this, or this article.

Related

why my background image in div dont show up if the position is relative [duplicate]

I am trying to set a <div> to a certain percentage height in CSS, but it just remains the same size as the content inside it. When I remove the HTML 5 <!DOCTYTPE html> however, it works, the <div> taking up the whole page as desired. I want the page to validate, so what should I do?
I have this CSS on the <div>, which has an ID of page:
#page {
padding: 10px;
background-color: white;
height: 90% !important;
}
I am trying to set a div to a certain percentage height in CSS
Percentage of what?
To set a percentage height, its parent element(*) must have an explicit height. This is fairly self-evident, in that if you leave height as auto, the block will take the height of its content... but if the content itself has a height expressed in terms of percentage of the parent you've made yourself a little Catch 22. The browser gives up and just uses the content height.
So the parent of the div must have an explicit height property. Whilst that height can also be a percentage if you want, that just moves the problem up to the next level.
If you want to make the div height a percentage of the viewport height, every ancestor of the div, including <html> and <body>, have to have height: 100%, so there is a chain of explicit percentage heights down to the div.
(*: or, if the div is positioned, the ‘containing block’, which is the nearest ancestor to also be positioned.)
Alternatively, all modern browsers and IE>=9 support new CSS units relative to viewport height (vh) and viewport width (vw):
div {
height:100vh;
}
See here for more info.
You need to set the height on the <html> and <body> elements as well; otherwise, they will only be large enough to fit the content. For example:
<!DOCTYPE html>
<title>Example of 100% width and height</title>
<style>
html, body { height: 100%; margin: 0; }
div { height: 100%; width: 100%; background: red; }
</style>
<div></div>
bobince's answer will let you know in which cases "height: XX%;" will or won't work.
If you want to create an element with a set ratio (height: % of it's own width), use the aspect-ratio property. Make sure height is not explicitly set on the element for it to work. https://developer.mozilla.org/en-US/docs/Web/CSS/aspect-ratio
.square {
width: 100%;
height: unset;
aspect-ratio: 1 / 1;
}
Historically, the best way to do this was to set the height using padding-bottom. Example for square:
<div class="square-container">
<div class="square-content">
<!-- put your content in here -->
</div>
</div>
.square-container { /* any display: block; element */
position: relative;
height: 0;
padding-bottom: 100%; /* of parent width */
}
.square-content {
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 100%;
}
The square container will just be made of padding, and the content will expand to fill the container. Long article from 2009 on this subject: http://alistapart.com/article/creating-intrinsic-ratios-for-video
In order to use percentage(%), you must define the % of its parent element. If you use body{height: 100%} it will not work because its parent have no percentage in height. In that case in order to work that body height you must add this in html{height:100%}
In other cases to get rid of that defining parent percentage you can use
body{height:100vh}
vh stands for viewport height
You can use 100vw / 100vh. CSS3 gives us viewport-relative units. 100vw means 100% of the viewport width. 100vh; 100% of the height.
<div style="display:flex; justify-content: space-between;background-color: lightyellow; width:100%; height:85vh">
<div style="width:70%; height: 100%; border: 2px dashed red"></div>
<div style="width:30%; height: 100%; border: 2px dashed red"></div>
</div>
Sometimes, you may want to conditionally set the height of a div, such as when the entire content is less than the height of the screen. Setting all parent elements to 100% will cut off content when it is longer than the screen size.
So, the way to get around this is to set the min-height:
Continue to let the parent elements automatically adjust their height
Then in your main div, subtract the pixel sizes of the header and footer div from 100vh (viewport units). In css, something like:
min-height: calc(100vh - 246px);
100vh is full length of the screen, minus the surrounding divs.
By setting min-height and not height, content longer than screen will continue to flow, instead of getting cut off.
With new CSS sizing properties you can get away with not setting exact height on parent. The new block-size and inline-size properties can be used like this:
<!DOCTYPE html>
<style>
#parent {
border: 1px dotted gray;
height: auto; /* auto values */
width: auto;
}
#wrapper {
background-color: violet;
writing-mode: vertical-lr;
block-size: 30%;
inline-size: 70%;
}
#child {
background-color: wheat;
writing-mode: horizontal-tb;
width: 30%; /* set to 100% if you don't want to expose wrapper */
height: 70%; /* none of the parent has exact height set */
}
</style>
<body>
<div id=parent>
<div id=wrapper>
<div id=child>Lorem ipsum dollar...</div>
Resize the browser window in full page mode. I think the values are relative to viewport height and width.
For more info refer: https://www.w3.org/TR/css-sizing-3/
Almost all browsers support it: https://caniuse.com/?search=inline-size

creates a bar with empty div [duplicate]

I am trying to set a <div> to a certain percentage height in CSS, but it just remains the same size as the content inside it. When I remove the HTML 5 <!DOCTYTPE html> however, it works, the <div> taking up the whole page as desired. I want the page to validate, so what should I do?
I have this CSS on the <div>, which has an ID of page:
#page {
padding: 10px;
background-color: white;
height: 90% !important;
}
I am trying to set a div to a certain percentage height in CSS
Percentage of what?
To set a percentage height, its parent element(*) must have an explicit height. This is fairly self-evident, in that if you leave height as auto, the block will take the height of its content... but if the content itself has a height expressed in terms of percentage of the parent you've made yourself a little Catch 22. The browser gives up and just uses the content height.
So the parent of the div must have an explicit height property. Whilst that height can also be a percentage if you want, that just moves the problem up to the next level.
If you want to make the div height a percentage of the viewport height, every ancestor of the div, including <html> and <body>, have to have height: 100%, so there is a chain of explicit percentage heights down to the div.
(*: or, if the div is positioned, the ‘containing block’, which is the nearest ancestor to also be positioned.)
Alternatively, all modern browsers and IE>=9 support new CSS units relative to viewport height (vh) and viewport width (vw):
div {
height:100vh;
}
See here for more info.
You need to set the height on the <html> and <body> elements as well; otherwise, they will only be large enough to fit the content. For example:
<!DOCTYPE html>
<title>Example of 100% width and height</title>
<style>
html, body { height: 100%; margin: 0; }
div { height: 100%; width: 100%; background: red; }
</style>
<div></div>
bobince's answer will let you know in which cases "height: XX%;" will or won't work.
If you want to create an element with a set ratio (height: % of it's own width), use the aspect-ratio property. Make sure height is not explicitly set on the element for it to work. https://developer.mozilla.org/en-US/docs/Web/CSS/aspect-ratio
.square {
width: 100%;
height: unset;
aspect-ratio: 1 / 1;
}
Historically, the best way to do this was to set the height using padding-bottom. Example for square:
<div class="square-container">
<div class="square-content">
<!-- put your content in here -->
</div>
</div>
.square-container { /* any display: block; element */
position: relative;
height: 0;
padding-bottom: 100%; /* of parent width */
}
.square-content {
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 100%;
}
The square container will just be made of padding, and the content will expand to fill the container. Long article from 2009 on this subject: http://alistapart.com/article/creating-intrinsic-ratios-for-video
In order to use percentage(%), you must define the % of its parent element. If you use body{height: 100%} it will not work because its parent have no percentage in height. In that case in order to work that body height you must add this in html{height:100%}
In other cases to get rid of that defining parent percentage you can use
body{height:100vh}
vh stands for viewport height
You can use 100vw / 100vh. CSS3 gives us viewport-relative units. 100vw means 100% of the viewport width. 100vh; 100% of the height.
<div style="display:flex; justify-content: space-between;background-color: lightyellow; width:100%; height:85vh">
<div style="width:70%; height: 100%; border: 2px dashed red"></div>
<div style="width:30%; height: 100%; border: 2px dashed red"></div>
</div>
Sometimes, you may want to conditionally set the height of a div, such as when the entire content is less than the height of the screen. Setting all parent elements to 100% will cut off content when it is longer than the screen size.
So, the way to get around this is to set the min-height:
Continue to let the parent elements automatically adjust their height
Then in your main div, subtract the pixel sizes of the header and footer div from 100vh (viewport units). In css, something like:
min-height: calc(100vh - 246px);
100vh is full length of the screen, minus the surrounding divs.
By setting min-height and not height, content longer than screen will continue to flow, instead of getting cut off.
With new CSS sizing properties you can get away with not setting exact height on parent. The new block-size and inline-size properties can be used like this:
<!DOCTYPE html>
<style>
#parent {
border: 1px dotted gray;
height: auto; /* auto values */
width: auto;
}
#wrapper {
background-color: violet;
writing-mode: vertical-lr;
block-size: 30%;
inline-size: 70%;
}
#child {
background-color: wheat;
writing-mode: horizontal-tb;
width: 30%; /* set to 100% if you don't want to expose wrapper */
height: 70%; /* none of the parent has exact height set */
}
</style>
<body>
<div id=parent>
<div id=wrapper>
<div id=child>Lorem ipsum dollar...</div>
Resize the browser window in full page mode. I think the values are relative to viewport height and width.
For more info refer: https://www.w3.org/TR/css-sizing-3/
Almost all browsers support it: https://caniuse.com/?search=inline-size

Overflow issue on flex box [duplicate]

I am trying to set a <div> to a certain percentage height in CSS, but it just remains the same size as the content inside it. When I remove the HTML 5 <!DOCTYTPE html> however, it works, the <div> taking up the whole page as desired. I want the page to validate, so what should I do?
I have this CSS on the <div>, which has an ID of page:
#page {
padding: 10px;
background-color: white;
height: 90% !important;
}
I am trying to set a div to a certain percentage height in CSS
Percentage of what?
To set a percentage height, its parent element(*) must have an explicit height. This is fairly self-evident, in that if you leave height as auto, the block will take the height of its content... but if the content itself has a height expressed in terms of percentage of the parent you've made yourself a little Catch 22. The browser gives up and just uses the content height.
So the parent of the div must have an explicit height property. Whilst that height can also be a percentage if you want, that just moves the problem up to the next level.
If you want to make the div height a percentage of the viewport height, every ancestor of the div, including <html> and <body>, have to have height: 100%, so there is a chain of explicit percentage heights down to the div.
(*: or, if the div is positioned, the ‘containing block’, which is the nearest ancestor to also be positioned.)
Alternatively, all modern browsers and IE>=9 support new CSS units relative to viewport height (vh) and viewport width (vw):
div {
height:100vh;
}
See here for more info.
You need to set the height on the <html> and <body> elements as well; otherwise, they will only be large enough to fit the content. For example:
<!DOCTYPE html>
<title>Example of 100% width and height</title>
<style>
html, body { height: 100%; margin: 0; }
div { height: 100%; width: 100%; background: red; }
</style>
<div></div>
bobince's answer will let you know in which cases "height: XX%;" will or won't work.
If you want to create an element with a set ratio (height: % of it's own width), use the aspect-ratio property. Make sure height is not explicitly set on the element for it to work. https://developer.mozilla.org/en-US/docs/Web/CSS/aspect-ratio
.square {
width: 100%;
height: unset;
aspect-ratio: 1 / 1;
}
Historically, the best way to do this was to set the height using padding-bottom. Example for square:
<div class="square-container">
<div class="square-content">
<!-- put your content in here -->
</div>
</div>
.square-container { /* any display: block; element */
position: relative;
height: 0;
padding-bottom: 100%; /* of parent width */
}
.square-content {
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 100%;
}
The square container will just be made of padding, and the content will expand to fill the container. Long article from 2009 on this subject: http://alistapart.com/article/creating-intrinsic-ratios-for-video
In order to use percentage(%), you must define the % of its parent element. If you use body{height: 100%} it will not work because its parent have no percentage in height. In that case in order to work that body height you must add this in html{height:100%}
In other cases to get rid of that defining parent percentage you can use
body{height:100vh}
vh stands for viewport height
You can use 100vw / 100vh. CSS3 gives us viewport-relative units. 100vw means 100% of the viewport width. 100vh; 100% of the height.
<div style="display:flex; justify-content: space-between;background-color: lightyellow; width:100%; height:85vh">
<div style="width:70%; height: 100%; border: 2px dashed red"></div>
<div style="width:30%; height: 100%; border: 2px dashed red"></div>
</div>
Sometimes, you may want to conditionally set the height of a div, such as when the entire content is less than the height of the screen. Setting all parent elements to 100% will cut off content when it is longer than the screen size.
So, the way to get around this is to set the min-height:
Continue to let the parent elements automatically adjust their height
Then in your main div, subtract the pixel sizes of the header and footer div from 100vh (viewport units). In css, something like:
min-height: calc(100vh - 246px);
100vh is full length of the screen, minus the surrounding divs.
By setting min-height and not height, content longer than screen will continue to flow, instead of getting cut off.
With new CSS sizing properties you can get away with not setting exact height on parent. The new block-size and inline-size properties can be used like this:
<!DOCTYPE html>
<style>
#parent {
border: 1px dotted gray;
height: auto; /* auto values */
width: auto;
}
#wrapper {
background-color: violet;
writing-mode: vertical-lr;
block-size: 30%;
inline-size: 70%;
}
#child {
background-color: wheat;
writing-mode: horizontal-tb;
width: 30%; /* set to 100% if you don't want to expose wrapper */
height: 70%; /* none of the parent has exact height set */
}
</style>
<body>
<div id=parent>
<div id=wrapper>
<div id=child>Lorem ipsum dollar...</div>
Resize the browser window in full page mode. I think the values are relative to viewport height and width.
For more info refer: https://www.w3.org/TR/css-sizing-3/
Almost all browsers support it: https://caniuse.com/?search=inline-size

Why my background-color only appear when I put the "body" and "html" in my CSS code? [duplicate]

I am trying to set a <div> to a certain percentage height in CSS, but it just remains the same size as the content inside it. When I remove the HTML 5 <!DOCTYTPE html> however, it works, the <div> taking up the whole page as desired. I want the page to validate, so what should I do?
I have this CSS on the <div>, which has an ID of page:
#page {
padding: 10px;
background-color: white;
height: 90% !important;
}
I am trying to set a div to a certain percentage height in CSS
Percentage of what?
To set a percentage height, its parent element(*) must have an explicit height. This is fairly self-evident, in that if you leave height as auto, the block will take the height of its content... but if the content itself has a height expressed in terms of percentage of the parent you've made yourself a little Catch 22. The browser gives up and just uses the content height.
So the parent of the div must have an explicit height property. Whilst that height can also be a percentage if you want, that just moves the problem up to the next level.
If you want to make the div height a percentage of the viewport height, every ancestor of the div, including <html> and <body>, have to have height: 100%, so there is a chain of explicit percentage heights down to the div.
(*: or, if the div is positioned, the ‘containing block’, which is the nearest ancestor to also be positioned.)
Alternatively, all modern browsers and IE>=9 support new CSS units relative to viewport height (vh) and viewport width (vw):
div {
height:100vh;
}
See here for more info.
You need to set the height on the <html> and <body> elements as well; otherwise, they will only be large enough to fit the content. For example:
<!DOCTYPE html>
<title>Example of 100% width and height</title>
<style>
html, body { height: 100%; margin: 0; }
div { height: 100%; width: 100%; background: red; }
</style>
<div></div>
bobince's answer will let you know in which cases "height: XX%;" will or won't work.
If you want to create an element with a set ratio (height: % of it's own width), use the aspect-ratio property. Make sure height is not explicitly set on the element for it to work. https://developer.mozilla.org/en-US/docs/Web/CSS/aspect-ratio
.square {
width: 100%;
height: unset;
aspect-ratio: 1 / 1;
}
Historically, the best way to do this was to set the height using padding-bottom. Example for square:
<div class="square-container">
<div class="square-content">
<!-- put your content in here -->
</div>
</div>
.square-container { /* any display: block; element */
position: relative;
height: 0;
padding-bottom: 100%; /* of parent width */
}
.square-content {
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 100%;
}
The square container will just be made of padding, and the content will expand to fill the container. Long article from 2009 on this subject: http://alistapart.com/article/creating-intrinsic-ratios-for-video
In order to use percentage(%), you must define the % of its parent element. If you use body{height: 100%} it will not work because its parent have no percentage in height. In that case in order to work that body height you must add this in html{height:100%}
In other cases to get rid of that defining parent percentage you can use
body{height:100vh}
vh stands for viewport height
You can use 100vw / 100vh. CSS3 gives us viewport-relative units. 100vw means 100% of the viewport width. 100vh; 100% of the height.
<div style="display:flex; justify-content: space-between;background-color: lightyellow; width:100%; height:85vh">
<div style="width:70%; height: 100%; border: 2px dashed red"></div>
<div style="width:30%; height: 100%; border: 2px dashed red"></div>
</div>
Sometimes, you may want to conditionally set the height of a div, such as when the entire content is less than the height of the screen. Setting all parent elements to 100% will cut off content when it is longer than the screen size.
So, the way to get around this is to set the min-height:
Continue to let the parent elements automatically adjust their height
Then in your main div, subtract the pixel sizes of the header and footer div from 100vh (viewport units). In css, something like:
min-height: calc(100vh - 246px);
100vh is full length of the screen, minus the surrounding divs.
By setting min-height and not height, content longer than screen will continue to flow, instead of getting cut off.
With new CSS sizing properties you can get away with not setting exact height on parent. The new block-size and inline-size properties can be used like this:
<!DOCTYPE html>
<style>
#parent {
border: 1px dotted gray;
height: auto; /* auto values */
width: auto;
}
#wrapper {
background-color: violet;
writing-mode: vertical-lr;
block-size: 30%;
inline-size: 70%;
}
#child {
background-color: wheat;
writing-mode: horizontal-tb;
width: 30%; /* set to 100% if you don't want to expose wrapper */
height: 70%; /* none of the parent has exact height set */
}
</style>
<body>
<div id=parent>
<div id=wrapper>
<div id=child>Lorem ipsum dollar...</div>
Resize the browser window in full page mode. I think the values are relative to viewport height and width.
For more info refer: https://www.w3.org/TR/css-sizing-3/
Almost all browsers support it: https://caniuse.com/?search=inline-size

Divs inside container div disappearing when min-height applied [duplicate]

I am trying to set a <div> to a certain percentage height in CSS, but it just remains the same size as the content inside it. When I remove the HTML 5 <!DOCTYTPE html> however, it works, the <div> taking up the whole page as desired. I want the page to validate, so what should I do?
I have this CSS on the <div>, which has an ID of page:
#page {
padding: 10px;
background-color: white;
height: 90% !important;
}
I am trying to set a div to a certain percentage height in CSS
Percentage of what?
To set a percentage height, its parent element(*) must have an explicit height. This is fairly self-evident, in that if you leave height as auto, the block will take the height of its content... but if the content itself has a height expressed in terms of percentage of the parent you've made yourself a little Catch 22. The browser gives up and just uses the content height.
So the parent of the div must have an explicit height property. Whilst that height can also be a percentage if you want, that just moves the problem up to the next level.
If you want to make the div height a percentage of the viewport height, every ancestor of the div, including <html> and <body>, have to have height: 100%, so there is a chain of explicit percentage heights down to the div.
(*: or, if the div is positioned, the ‘containing block’, which is the nearest ancestor to also be positioned.)
Alternatively, all modern browsers and IE>=9 support new CSS units relative to viewport height (vh) and viewport width (vw):
div {
height:100vh;
}
See here for more info.
You need to set the height on the <html> and <body> elements as well; otherwise, they will only be large enough to fit the content. For example:
<!DOCTYPE html>
<title>Example of 100% width and height</title>
<style>
html, body { height: 100%; margin: 0; }
div { height: 100%; width: 100%; background: red; }
</style>
<div></div>
bobince's answer will let you know in which cases "height: XX%;" will or won't work.
If you want to create an element with a set ratio (height: % of it's own width), use the aspect-ratio property. Make sure height is not explicitly set on the element for it to work. https://developer.mozilla.org/en-US/docs/Web/CSS/aspect-ratio
.square {
width: 100%;
height: unset;
aspect-ratio: 1 / 1;
}
Historically, the best way to do this was to set the height using padding-bottom. Example for square:
<div class="square-container">
<div class="square-content">
<!-- put your content in here -->
</div>
</div>
.square-container { /* any display: block; element */
position: relative;
height: 0;
padding-bottom: 100%; /* of parent width */
}
.square-content {
position: absolute;
left: 0;
top: 0;
height: 100%;
width: 100%;
}
The square container will just be made of padding, and the content will expand to fill the container. Long article from 2009 on this subject: http://alistapart.com/article/creating-intrinsic-ratios-for-video
In order to use percentage(%), you must define the % of its parent element. If you use body{height: 100%} it will not work because its parent have no percentage in height. In that case in order to work that body height you must add this in html{height:100%}
In other cases to get rid of that defining parent percentage you can use
body{height:100vh}
vh stands for viewport height
You can use 100vw / 100vh. CSS3 gives us viewport-relative units. 100vw means 100% of the viewport width. 100vh; 100% of the height.
<div style="display:flex; justify-content: space-between;background-color: lightyellow; width:100%; height:85vh">
<div style="width:70%; height: 100%; border: 2px dashed red"></div>
<div style="width:30%; height: 100%; border: 2px dashed red"></div>
</div>
Sometimes, you may want to conditionally set the height of a div, such as when the entire content is less than the height of the screen. Setting all parent elements to 100% will cut off content when it is longer than the screen size.
So, the way to get around this is to set the min-height:
Continue to let the parent elements automatically adjust their height
Then in your main div, subtract the pixel sizes of the header and footer div from 100vh (viewport units). In css, something like:
min-height: calc(100vh - 246px);
100vh is full length of the screen, minus the surrounding divs.
By setting min-height and not height, content longer than screen will continue to flow, instead of getting cut off.
With new CSS sizing properties you can get away with not setting exact height on parent. The new block-size and inline-size properties can be used like this:
<!DOCTYPE html>
<style>
#parent {
border: 1px dotted gray;
height: auto; /* auto values */
width: auto;
}
#wrapper {
background-color: violet;
writing-mode: vertical-lr;
block-size: 30%;
inline-size: 70%;
}
#child {
background-color: wheat;
writing-mode: horizontal-tb;
width: 30%; /* set to 100% if you don't want to expose wrapper */
height: 70%; /* none of the parent has exact height set */
}
</style>
<body>
<div id=parent>
<div id=wrapper>
<div id=child>Lorem ipsum dollar...</div>
Resize the browser window in full page mode. I think the values are relative to viewport height and width.
For more info refer: https://www.w3.org/TR/css-sizing-3/
Almost all browsers support it: https://caniuse.com/?search=inline-size