This question already has answers here:
Why does this CSS margin-top style not work?
(14 answers)
Closed 2 years ago.
My css margins doesn't behave the way I want or expect them to. I seems like my header margin-top affect the div-tags surrounding it.
This is what I want and expect:
...but this is what I end up with:
Source:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Margin test</title>
<style type="text/css">
body {
margin:0;
}
#page {
margin:0;
background:#FF9;
}
#page_container {
margin:0 20px;
}
h1 {
margin:50px 0 0 0;
}
</style>
</head>
<body>
<div id="page">
<div id="page_container">
<header id="branding" role="banner">
<hgroup>
<h1 id="site-title"><span>Title</span></h1>
<h2 id="site-description">Description</h2>
</hgroup>
</header>
</div>
</div>
I have exaggerated the margin in this example. Default browser margin on h1-tag is somewhat smaller, and in my case I use Twitter Bootstrap, with Normalizer.css which sets default margin to 10px. Not that important, main point is; I can not, should not, want not change the margin on the h1-tag.
I guess it is similar to my other question; Why does this CSS margin-top style not work?. Question is how do I solve this specific issue?
I have read a few threads on similar problems, but haven't found any real answers and solutions. I know adding padding:1px; or border:1px; solves the problem. But that only adds new problems, since I do not want a padding nor a border on my div-tags.
There must be a better, best practice, solution? This must be pretty common.
Add overflow:auto to your #page div.
jsFiddle example
And check out collapsing margins while you're at it.
Add any one of the following rules:
float: left/right;
position: absolute;
display: inline-block;
overflow: auto/scroll/hidden;
clear: left/right/both;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
The W3C specification defines collapsing margins as follows:
“In this specification, the expression collapsing margins means that adjoining margins (no non-empty content, padding, or border areas, or clearance separate them) of two or more boxes (which may be next to one another or nested) combine to form a single margin.”
This is also true for parent-child elements.
All the answers include one of the possible solutions:
There are other situations where elements do not have their margins collapsed:
floated elements
absolutely positioned elements
inline-block elements
elements with overflow set to anything other than visible (They do not collapse margins with their children.)
cleared elements (They do not collapse their top margins with their parent block’s bottom margin.)
the root element
Problem was the parent not taking into account children for height. Adding display:inline-block; did it for me.
Full CSS
#page {
margin:0;
background:#FF9;
display:inline-block;
width:100%;
}
See Fiddle
Just add border-top: 1px solid transparent; to your #page element.
From w3.org
Two margins are adjoining if and only if:
- no line boxes, no clearance, no padding and no border separate them
Add the following rule:
overflow: hidden;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
If a parent element does not have any top padding or less top margin then its first child, then elements are rendered in a way that makes the parent element appear to have the child element's margin. So this can happen anywhere on a page where these conditions are met, but it tends to be most obvious at the top of a page.
The solutions in the other answers didn't work for me. Transparent borders, inline-block, etc., all caused other problems. Instead, I added the following css to my ancestor element:
parent::after{
content: "";
display: inline-block;
clear: both;
}
Depending on your situation, this may cause its own problems because it adds extra space after the last child element.
My approach when I was making styles for XenForo 2.1, but it should be useful for you:
(Please replace those LESS variables to your actual values. Also, the absolute value of minor margins shall be as same as the height of before-after pseudo elements.)
// The following two lines are to avoid top & bottom fieldset borders run out of the block body.
// (Do not tweak the CSS overflow settings, otherwise the editor menu won't be float above the block border.)
&:before {content: "\a0"; display: block; width: auto; margin-bottom: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
&:after {content: "\a0"; display: block; width: auto; margin-top: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
Related
This question already has answers here:
Why does this CSS margin-top style not work?
(14 answers)
Closed 2 years ago.
My css margins doesn't behave the way I want or expect them to. I seems like my header margin-top affect the div-tags surrounding it.
This is what I want and expect:
...but this is what I end up with:
Source:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Margin test</title>
<style type="text/css">
body {
margin:0;
}
#page {
margin:0;
background:#FF9;
}
#page_container {
margin:0 20px;
}
h1 {
margin:50px 0 0 0;
}
</style>
</head>
<body>
<div id="page">
<div id="page_container">
<header id="branding" role="banner">
<hgroup>
<h1 id="site-title"><span>Title</span></h1>
<h2 id="site-description">Description</h2>
</hgroup>
</header>
</div>
</div>
I have exaggerated the margin in this example. Default browser margin on h1-tag is somewhat smaller, and in my case I use Twitter Bootstrap, with Normalizer.css which sets default margin to 10px. Not that important, main point is; I can not, should not, want not change the margin on the h1-tag.
I guess it is similar to my other question; Why does this CSS margin-top style not work?. Question is how do I solve this specific issue?
I have read a few threads on similar problems, but haven't found any real answers and solutions. I know adding padding:1px; or border:1px; solves the problem. But that only adds new problems, since I do not want a padding nor a border on my div-tags.
There must be a better, best practice, solution? This must be pretty common.
Add overflow:auto to your #page div.
jsFiddle example
And check out collapsing margins while you're at it.
Add any one of the following rules:
float: left/right;
position: absolute;
display: inline-block;
overflow: auto/scroll/hidden;
clear: left/right/both;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
The W3C specification defines collapsing margins as follows:
“In this specification, the expression collapsing margins means that adjoining margins (no non-empty content, padding, or border areas, or clearance separate them) of two or more boxes (which may be next to one another or nested) combine to form a single margin.”
This is also true for parent-child elements.
All the answers include one of the possible solutions:
There are other situations where elements do not have their margins collapsed:
floated elements
absolutely positioned elements
inline-block elements
elements with overflow set to anything other than visible (They do not collapse margins with their children.)
cleared elements (They do not collapse their top margins with their parent block’s bottom margin.)
the root element
Problem was the parent not taking into account children for height. Adding display:inline-block; did it for me.
Full CSS
#page {
margin:0;
background:#FF9;
display:inline-block;
width:100%;
}
See Fiddle
Just add border-top: 1px solid transparent; to your #page element.
From w3.org
Two margins are adjoining if and only if:
- no line boxes, no clearance, no padding and no border separate them
Add the following rule:
overflow: hidden;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
If a parent element does not have any top padding or less top margin then its first child, then elements are rendered in a way that makes the parent element appear to have the child element's margin. So this can happen anywhere on a page where these conditions are met, but it tends to be most obvious at the top of a page.
The solutions in the other answers didn't work for me. Transparent borders, inline-block, etc., all caused other problems. Instead, I added the following css to my ancestor element:
parent::after{
content: "";
display: inline-block;
clear: both;
}
Depending on your situation, this may cause its own problems because it adds extra space after the last child element.
My approach when I was making styles for XenForo 2.1, but it should be useful for you:
(Please replace those LESS variables to your actual values. Also, the absolute value of minor margins shall be as same as the height of before-after pseudo elements.)
// The following two lines are to avoid top & bottom fieldset borders run out of the block body.
// (Do not tweak the CSS overflow settings, otherwise the editor menu won't be float above the block border.)
&:before {content: "\a0"; display: block; width: auto; margin-bottom: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
&:after {content: "\a0"; display: block; width: auto; margin-top: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
This question already has answers here:
Why does this CSS margin-top style not work?
(14 answers)
Closed 2 years ago.
My css margins doesn't behave the way I want or expect them to. I seems like my header margin-top affect the div-tags surrounding it.
This is what I want and expect:
...but this is what I end up with:
Source:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Margin test</title>
<style type="text/css">
body {
margin:0;
}
#page {
margin:0;
background:#FF9;
}
#page_container {
margin:0 20px;
}
h1 {
margin:50px 0 0 0;
}
</style>
</head>
<body>
<div id="page">
<div id="page_container">
<header id="branding" role="banner">
<hgroup>
<h1 id="site-title"><span>Title</span></h1>
<h2 id="site-description">Description</h2>
</hgroup>
</header>
</div>
</div>
I have exaggerated the margin in this example. Default browser margin on h1-tag is somewhat smaller, and in my case I use Twitter Bootstrap, with Normalizer.css which sets default margin to 10px. Not that important, main point is; I can not, should not, want not change the margin on the h1-tag.
I guess it is similar to my other question; Why does this CSS margin-top style not work?. Question is how do I solve this specific issue?
I have read a few threads on similar problems, but haven't found any real answers and solutions. I know adding padding:1px; or border:1px; solves the problem. But that only adds new problems, since I do not want a padding nor a border on my div-tags.
There must be a better, best practice, solution? This must be pretty common.
Add overflow:auto to your #page div.
jsFiddle example
And check out collapsing margins while you're at it.
Add any one of the following rules:
float: left/right;
position: absolute;
display: inline-block;
overflow: auto/scroll/hidden;
clear: left/right/both;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
The W3C specification defines collapsing margins as follows:
“In this specification, the expression collapsing margins means that adjoining margins (no non-empty content, padding, or border areas, or clearance separate them) of two or more boxes (which may be next to one another or nested) combine to form a single margin.”
This is also true for parent-child elements.
All the answers include one of the possible solutions:
There are other situations where elements do not have their margins collapsed:
floated elements
absolutely positioned elements
inline-block elements
elements with overflow set to anything other than visible (They do not collapse margins with their children.)
cleared elements (They do not collapse their top margins with their parent block’s bottom margin.)
the root element
Problem was the parent not taking into account children for height. Adding display:inline-block; did it for me.
Full CSS
#page {
margin:0;
background:#FF9;
display:inline-block;
width:100%;
}
See Fiddle
Just add border-top: 1px solid transparent; to your #page element.
From w3.org
Two margins are adjoining if and only if:
- no line boxes, no clearance, no padding and no border separate them
Add the following rule:
overflow: hidden;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
If a parent element does not have any top padding or less top margin then its first child, then elements are rendered in a way that makes the parent element appear to have the child element's margin. So this can happen anywhere on a page where these conditions are met, but it tends to be most obvious at the top of a page.
The solutions in the other answers didn't work for me. Transparent borders, inline-block, etc., all caused other problems. Instead, I added the following css to my ancestor element:
parent::after{
content: "";
display: inline-block;
clear: both;
}
Depending on your situation, this may cause its own problems because it adds extra space after the last child element.
My approach when I was making styles for XenForo 2.1, but it should be useful for you:
(Please replace those LESS variables to your actual values. Also, the absolute value of minor margins shall be as same as the height of before-after pseudo elements.)
// The following two lines are to avoid top & bottom fieldset borders run out of the block body.
// (Do not tweak the CSS overflow settings, otherwise the editor menu won't be float above the block border.)
&:before {content: "\a0"; display: block; width: auto; margin-bottom: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
&:after {content: "\a0"; display: block; width: auto; margin-top: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
This question already has answers here:
Why does this CSS margin-top style not work?
(14 answers)
Closed 2 years ago.
My css margins doesn't behave the way I want or expect them to. I seems like my header margin-top affect the div-tags surrounding it.
This is what I want and expect:
...but this is what I end up with:
Source:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Margin test</title>
<style type="text/css">
body {
margin:0;
}
#page {
margin:0;
background:#FF9;
}
#page_container {
margin:0 20px;
}
h1 {
margin:50px 0 0 0;
}
</style>
</head>
<body>
<div id="page">
<div id="page_container">
<header id="branding" role="banner">
<hgroup>
<h1 id="site-title"><span>Title</span></h1>
<h2 id="site-description">Description</h2>
</hgroup>
</header>
</div>
</div>
I have exaggerated the margin in this example. Default browser margin on h1-tag is somewhat smaller, and in my case I use Twitter Bootstrap, with Normalizer.css which sets default margin to 10px. Not that important, main point is; I can not, should not, want not change the margin on the h1-tag.
I guess it is similar to my other question; Why does this CSS margin-top style not work?. Question is how do I solve this specific issue?
I have read a few threads on similar problems, but haven't found any real answers and solutions. I know adding padding:1px; or border:1px; solves the problem. But that only adds new problems, since I do not want a padding nor a border on my div-tags.
There must be a better, best practice, solution? This must be pretty common.
Add overflow:auto to your #page div.
jsFiddle example
And check out collapsing margins while you're at it.
Add any one of the following rules:
float: left/right;
position: absolute;
display: inline-block;
overflow: auto/scroll/hidden;
clear: left/right/both;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
The W3C specification defines collapsing margins as follows:
“In this specification, the expression collapsing margins means that adjoining margins (no non-empty content, padding, or border areas, or clearance separate them) of two or more boxes (which may be next to one another or nested) combine to form a single margin.”
This is also true for parent-child elements.
All the answers include one of the possible solutions:
There are other situations where elements do not have their margins collapsed:
floated elements
absolutely positioned elements
inline-block elements
elements with overflow set to anything other than visible (They do not collapse margins with their children.)
cleared elements (They do not collapse their top margins with their parent block’s bottom margin.)
the root element
Problem was the parent not taking into account children for height. Adding display:inline-block; did it for me.
Full CSS
#page {
margin:0;
background:#FF9;
display:inline-block;
width:100%;
}
See Fiddle
Just add border-top: 1px solid transparent; to your #page element.
From w3.org
Two margins are adjoining if and only if:
- no line boxes, no clearance, no padding and no border separate them
Add the following rule:
overflow: hidden;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
If a parent element does not have any top padding or less top margin then its first child, then elements are rendered in a way that makes the parent element appear to have the child element's margin. So this can happen anywhere on a page where these conditions are met, but it tends to be most obvious at the top of a page.
The solutions in the other answers didn't work for me. Transparent borders, inline-block, etc., all caused other problems. Instead, I added the following css to my ancestor element:
parent::after{
content: "";
display: inline-block;
clear: both;
}
Depending on your situation, this may cause its own problems because it adds extra space after the last child element.
My approach when I was making styles for XenForo 2.1, but it should be useful for you:
(Please replace those LESS variables to your actual values. Also, the absolute value of minor margins shall be as same as the height of before-after pseudo elements.)
// The following two lines are to avoid top & bottom fieldset borders run out of the block body.
// (Do not tweak the CSS overflow settings, otherwise the editor menu won't be float above the block border.)
&:before {content: "\a0"; display: block; width: auto; margin-bottom: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
&:after {content: "\a0"; display: block; width: auto; margin-top: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
This question already has answers here:
Why does this CSS margin-top style not work?
(14 answers)
Closed 2 years ago.
My css margins doesn't behave the way I want or expect them to. I seems like my header margin-top affect the div-tags surrounding it.
This is what I want and expect:
...but this is what I end up with:
Source:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Margin test</title>
<style type="text/css">
body {
margin:0;
}
#page {
margin:0;
background:#FF9;
}
#page_container {
margin:0 20px;
}
h1 {
margin:50px 0 0 0;
}
</style>
</head>
<body>
<div id="page">
<div id="page_container">
<header id="branding" role="banner">
<hgroup>
<h1 id="site-title"><span>Title</span></h1>
<h2 id="site-description">Description</h2>
</hgroup>
</header>
</div>
</div>
I have exaggerated the margin in this example. Default browser margin on h1-tag is somewhat smaller, and in my case I use Twitter Bootstrap, with Normalizer.css which sets default margin to 10px. Not that important, main point is; I can not, should not, want not change the margin on the h1-tag.
I guess it is similar to my other question; Why does this CSS margin-top style not work?. Question is how do I solve this specific issue?
I have read a few threads on similar problems, but haven't found any real answers and solutions. I know adding padding:1px; or border:1px; solves the problem. But that only adds new problems, since I do not want a padding nor a border on my div-tags.
There must be a better, best practice, solution? This must be pretty common.
Add overflow:auto to your #page div.
jsFiddle example
And check out collapsing margins while you're at it.
Add any one of the following rules:
float: left/right;
position: absolute;
display: inline-block;
overflow: auto/scroll/hidden;
clear: left/right/both;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
The W3C specification defines collapsing margins as follows:
“In this specification, the expression collapsing margins means that adjoining margins (no non-empty content, padding, or border areas, or clearance separate them) of two or more boxes (which may be next to one another or nested) combine to form a single margin.”
This is also true for parent-child elements.
All the answers include one of the possible solutions:
There are other situations where elements do not have their margins collapsed:
floated elements
absolutely positioned elements
inline-block elements
elements with overflow set to anything other than visible (They do not collapse margins with their children.)
cleared elements (They do not collapse their top margins with their parent block’s bottom margin.)
the root element
Problem was the parent not taking into account children for height. Adding display:inline-block; did it for me.
Full CSS
#page {
margin:0;
background:#FF9;
display:inline-block;
width:100%;
}
See Fiddle
Just add border-top: 1px solid transparent; to your #page element.
From w3.org
Two margins are adjoining if and only if:
- no line boxes, no clearance, no padding and no border separate them
Add the following rule:
overflow: hidden;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
If a parent element does not have any top padding or less top margin then its first child, then elements are rendered in a way that makes the parent element appear to have the child element's margin. So this can happen anywhere on a page where these conditions are met, but it tends to be most obvious at the top of a page.
The solutions in the other answers didn't work for me. Transparent borders, inline-block, etc., all caused other problems. Instead, I added the following css to my ancestor element:
parent::after{
content: "";
display: inline-block;
clear: both;
}
Depending on your situation, this may cause its own problems because it adds extra space after the last child element.
My approach when I was making styles for XenForo 2.1, but it should be useful for you:
(Please replace those LESS variables to your actual values. Also, the absolute value of minor margins shall be as same as the height of before-after pseudo elements.)
// The following two lines are to avoid top & bottom fieldset borders run out of the block body.
// (Do not tweak the CSS overflow settings, otherwise the editor menu won't be float above the block border.)
&:before {content: "\a0"; display: block; width: auto; margin-bottom: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
&:after {content: "\a0"; display: block; width: auto; margin-top: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
This question already has answers here:
Why does this CSS margin-top style not work?
(14 answers)
Closed 2 years ago.
My css margins doesn't behave the way I want or expect them to. I seems like my header margin-top affect the div-tags surrounding it.
This is what I want and expect:
...but this is what I end up with:
Source:
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>Margin test</title>
<style type="text/css">
body {
margin:0;
}
#page {
margin:0;
background:#FF9;
}
#page_container {
margin:0 20px;
}
h1 {
margin:50px 0 0 0;
}
</style>
</head>
<body>
<div id="page">
<div id="page_container">
<header id="branding" role="banner">
<hgroup>
<h1 id="site-title"><span>Title</span></h1>
<h2 id="site-description">Description</h2>
</hgroup>
</header>
</div>
</div>
I have exaggerated the margin in this example. Default browser margin on h1-tag is somewhat smaller, and in my case I use Twitter Bootstrap, with Normalizer.css which sets default margin to 10px. Not that important, main point is; I can not, should not, want not change the margin on the h1-tag.
I guess it is similar to my other question; Why does this CSS margin-top style not work?. Question is how do I solve this specific issue?
I have read a few threads on similar problems, but haven't found any real answers and solutions. I know adding padding:1px; or border:1px; solves the problem. But that only adds new problems, since I do not want a padding nor a border on my div-tags.
There must be a better, best practice, solution? This must be pretty common.
Add overflow:auto to your #page div.
jsFiddle example
And check out collapsing margins while you're at it.
Add any one of the following rules:
float: left/right;
position: absolute;
display: inline-block;
overflow: auto/scroll/hidden;
clear: left/right/both;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
The W3C specification defines collapsing margins as follows:
“In this specification, the expression collapsing margins means that adjoining margins (no non-empty content, padding, or border areas, or clearance separate them) of two or more boxes (which may be next to one another or nested) combine to form a single margin.”
This is also true for parent-child elements.
All the answers include one of the possible solutions:
There are other situations where elements do not have their margins collapsed:
floated elements
absolutely positioned elements
inline-block elements
elements with overflow set to anything other than visible (They do not collapse margins with their children.)
cleared elements (They do not collapse their top margins with their parent block’s bottom margin.)
the root element
Problem was the parent not taking into account children for height. Adding display:inline-block; did it for me.
Full CSS
#page {
margin:0;
background:#FF9;
display:inline-block;
width:100%;
}
See Fiddle
Just add border-top: 1px solid transparent; to your #page element.
From w3.org
Two margins are adjoining if and only if:
- no line boxes, no clearance, no padding and no border separate them
Add the following rule:
overflow: hidden;
This is caused by collapsing margins. See an article about this behavior here.
According to the article:
If a parent element does not have any top padding or less top margin then its first child, then elements are rendered in a way that makes the parent element appear to have the child element's margin. So this can happen anywhere on a page where these conditions are met, but it tends to be most obvious at the top of a page.
The solutions in the other answers didn't work for me. Transparent borders, inline-block, etc., all caused other problems. Instead, I added the following css to my ancestor element:
parent::after{
content: "";
display: inline-block;
clear: both;
}
Depending on your situation, this may cause its own problems because it adds extra space after the last child element.
My approach when I was making styles for XenForo 2.1, but it should be useful for you:
(Please replace those LESS variables to your actual values. Also, the absolute value of minor margins shall be as same as the height of before-after pseudo elements.)
// The following two lines are to avoid top & bottom fieldset borders run out of the block body.
// (Do not tweak the CSS overflow settings, otherwise the editor menu won't be float above the block border.)
&:before {content: "\a0"; display: block; width: auto; margin-bottom: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}
&:after {content: "\a0"; display: block; width: auto; margin-top: floor(-1 * #xf-lineHeightDefault * #xf-fontSizeSmall - #xf-borderSizeMinorFeature);}