I have a container div (it has both width an height set in pixels).
Is there a way to add a child div that will fill its entire parent but still have margin and or padding ?
suppose the parent div is 200px wide, and 200px high.
if I give the child div a width/height of 100% then it assumes that I mean for the content are to be of size 200px and then if I add padding or margins the size of the child becomes bigger then that of the parent.
I want the child div's content area to be what ever is left after taking out 5px margins on each side...
and please don't tell me to subtract 2*5px from 200px - I know that but I am looking for a better solution.
could it be that css can't handle such a simple task...
You could try the following:
#outer {
width: 200px;
height: 200px;
background: blue;
position: relative;
}
.inner {
position: absolute;
top: 5px;
right: 5px;
bottom: 5px;
left: 5px;
}
demo: http://jsfiddle.net/wYNYh/1/
Set all elements to have box-sizing as border-box in your stylesheet.
This will sum up the padding of all elements so you don't have to worry about any disruptions if you add any padding.
*{
box-sizing: border-box;
}
Something like this: http://jsfiddle.net/Rnf82/ ?
You can set the padding of the outer div. Then the inner div will only occupy what's left.
Have a look at this: (try yourself at jsFiddle)
.outer {
width: 200px;
height: 200px;
background-color: #DD0000;
padding: 5px;
box-sizing: border-box;
}
.inner {
width: 100%;
height: 100%;
background-color: #0000DD;
}
<div class="outer">
<div class="inner"></div>
</div>
really these two ways of doing this is equivalent as far as the question is concerned. It is important to remember the redundancy generated by how html and css standards are setup.
Related
I know this title is probably about the most common on SO, but I seem to have a very specific problem that I can't find documented.
I have a div that I want to be exactly square, so I followed the CSS advice in this answer. I also want a child div to fill this space, so I've followed all the standard guidelines of having a clear:both div in a wrapper, etc, but my child div is still not filling its parent. The problem is the height: 0 of the parent div - is there a solution to this but still maintaining the exact square (preferably pure CSS, I'm aware there are JS solutions). Example of this is at this fiddle.
You can give the inner box an absolute position and set it to conform to the edges of the containing box:
.box div {
position: absolute;
top: 0; right: 0; bottom: 0; left: 0;
border: 1px solid black;
display: block;
background-color: rgba(0,0,0,0.1);
}
jsfiddle
Not sure if it's any better to what you proposed, maybe if you wanted content in the box?
If you're not too worried about support then using vh, vw, or vmin would be a good alternative. Since height would actually be set you could easily set the child element to fill the parent.
CSS:
.parent {
width: 50vmin;
height: 50vmin;
background-color: blue;
margin: 0 auto;
}
.child {
width: 100%;
height: 100%;
background-color: red;
}
HTML:
<div class='parent'>
<div class='child'></div>
</div>
Here's an example. I like vmax, but it's not as well supported as vmin, vh, and vw.
This padding trick for responsive boxes work with absolute positioning.
css-padding-trick-responsive-intrinsic-ratios
So use absolute positioning for inner div.
.box {
...
position: relative;
}
.box div {
...
position: absolute;
left: 0;
top: 0;
}
Adding padding-bottom: 100% to the child div does fill the space and seems to be a fix; the updated jsfiddle reflects this
HTML:
<div class="content">
<div class="card">
</div>
</div>
CSS:
.content {
min-height: 350px;
min-width: 320px;
max-width: 350px;
padding: 15px;
}
.card {
width: 100%;
height: 100%;
background-color: black;
}
http://jsfiddle.net/aJhEF/1/
When examined with console, it shows that .content has functioning width and height. Then why does the child element, with its width and height being set to 100% not fill out its parent's width and height?
Child elements don't inherit their parents min-height property
This is why the .card element has a height of 0
As far as width is concerned, .card does fill out it's parent's width.
Danield is right.
You might solve this by using relative and absolute positions, combined with a negative margin (to compensate the padding):
.content {
min-height: 350px;
min-width: 320px;
max-width: 350px;
padding: 15px;
position: relative;
}
.card {
width: 100%;
height: 100%;
background-color: black;
position: absolute;
margin: -15px;
}
Because you gave the parent a set padding.
Remove padding: 15px; to fill out the div.
padding is extra space at the inside of the elements borders. If you want space around the outside, use margin.
You stated that you wanted your child to fill out the parent element, and since padding it is extra space on the inside of the parent element, the child will not fill out it's parent as long as the padding is there.
Edit: The reason you don't see the results you wanted is because you have your element a min-height and min-width instead of actual sizes. You need to give this element set size (be it pixels or %). This is due to the fact that your child element doesn't inherit the min and max width/height of it's parent.
See JSFiddle
I'm working on a website that fits perfectly in the browser window. Below is a basic blueprint of the website layout:
So far, the Red area is just display:block. The Green area is also display:block with margin-right:200px. The Blue areas(nested in a div) is float:right.
So I've got the width sorted. It's the height I need advice on. The Red and Dark Blue areas are a set height, but I need the Green and Light Blue areas to fit the height of the browser window view.
I'm trying to use box-sizing, but it exceeds the height of the window view because it's extending to the max height of the window. Sorry for my poor explanation. Any advice if would be excellent. Thank you!
For green div set height: calc(100%-{red-div-height}); and for the light blue div set height: calc(100%-{dark-blue-div-height}-{red-div-height});
This is kinda the legacy version of C-Link's answer.
jsFiddle and fullscreen
This has the limitation of any content falling below one page-full falling outside of its container (you can see if you scroll down in the fiddle, but not on the fullscreen).
Make sure our page stretches to its full height.
body, html { height: 100%; width: 100%; margin: 0; padding: 0;}
Set a static-height header.
header {
height: 101px;
background: red;
}
Create a box for everything under the header. You were on the right track with the box-sizing. We can add padding to it, in the same amount as our header. Then percentages inside it work nicely.
.content {
position: absolute;
box-sizing: border-box;
padding-top: 111px;
padding-bottom: 10px;
top: 0; left: 0;
height: 100%; width: 100%;
}
We float our aside (may or may not be the correct element, depending on contents) and set some styles on it.
aside {
float: right;
width: 20%;
height: 100%;
padding-bottom: 111px;
box-sizing: border-box;
}
.top {
height: 100px;
background: blue;
}
.bottom {
margin-top: 10px;
height: 100%;
background: skyblue;
}
This is our main, large, content area, which we float to the left. The width could be specified exactly if we wanted exact padding at the cost of additional HTML.
[role="main"] {
width: 78%;
background: limegreen;
height: 100%;
float: left;
box-sizing: border-box;
}
You can also set overflow-y: auto on our main or aside elements, to have them scroll when they run out of space. There should also be mobile styles for this page that remove the floating, absolute positioning, absolute styling, and widths should be nearly 100%.
you can always set the green box height to the window height minus the red box height.
accordingly the light box height to the window height minus the (red box height + the dark blue box height)
Edit 1: I haven't mentioned that has to be done with javascript.
Edit 2: Consider any paddings and margins too.
Could you not just give the divs a max or min height depending on their purpose?
I use a main container or wrapper div that the others would be contained in, that div is then my effective page or screen area.
<div id="wrapper">
<div id="content">
<div id="sidebar">
</div>
</div>
</div>
#wrapper{
min-height: Whatever value you want here;
max-height: Whatever value you want here;
}
It might be a good idea to set up your page using main container divs, hot only for the content but for the header and footer as well.
As an example, I have a main wrapper that is the whole page, within that is the header div, the content div, the nav div and the footer div. These are the main ones. Everything else can then be contained within them.
So, you can set the layout out using percentages so you have a fluid design that'll react to each browser size. The other elements will then 'fit' inside the main divs and be constrained to them. You may need to look into positioning etc but this is certainly the direction you should head towards.
<div id="wrapper">
<div id="header">Header Here including any divs to be contained within this space</div>
<div id="content">All content etc here</div>
<div id="nav">This is your sidebar</div>
<div id="footer">Footer, as per header</div>
</div>
Then use the css to re deisgn the above layout focusing only on those main divs. Use % instead of px to maintain fluidity.
#wrapper{
width: 100%;
height: 100%
}
#header{
width: 100%;
height: 20%
}
#content{
width: 70%;
height: 60%;
float:left;
}
#nav{
width: 30%;
height: 60%;
float:left;
}
#footer{
width: 100%;
height: 20%
}
A pretty common trick is to give the green (and light blue) box absolute positioning, a padding AND a negative margin. Because 100% width is relative to the containing box (could be a parent div, or just the window itself) this is not suitable. When the header was a relative height, say 10%, it would've been easy. The padding makes sure the content will not disappear behind the header, the negative margin puts the box back in place. Don't forget the z-index (otherwise the content (green part) will overlap the header).
The css looks like this:
.header { position: absolute; width: 100%; height: 100px; background: red; z-index: 1; }
.content { position: absolute; width: 100%; height: 100%; padding: 100px 0 0; margin-top: -100px; background: green; z-index: 0; }
The fiddle looks like this: http://jsfiddle.net/2L7VU/
The final ancestor div in my page needs a margin on all four sides, to give it a panel effect. Here is my code:
CSS:
html, body {
height: 100%;
}
#wrapper {
width: 100%;
height: 100%;
}
#bibletree {
width: 20%;
float: left;
height: 100%;
}
.inner { /*this is the div that I need a margin around, so it is by 10px of the #bibletree div on all sides, including the bottom.*/
overflow: auto;
}
HTML:
<div id="wrapper">
<div id="bibletree">
<div class="inner">my content here, both short and long</div>
</div>
</div>
As you probably guessed, there is a lot more going on here than what is written. I have several columns with divs that all need this margin for the panel effect on the .inner div. Thanks for any help.
BTW, I have tried absolute positioning and it only positions based on the window, not on the parent element, even if I set the parent to position: relative.
If you set .inner to width 100% and add a margin, it will be wider than its container. You can set a padding or a border instead. For example, you can add a white or transparent border of 10px.
Another option is to make #bibletree position relative, then make .inner position absolute and specify top, bottom, right and left:
.inner {
bottom: 10px;
top: 10px;
left: 10px;
right: 10px;
position: absolute;
}
This will make it the same size as #bibletree, minus 10px on every side.
Margin:10px is working right?? you need not no specify the width for inner div, as div is already has block option. check here updated demo http://jsfiddle.net/QShRZ/5/
I'm trying to get my horizontal rule to ignore the parent padding.
Here's a simple example of what I have:
#parent {
padding:10px;
width:100px;
}
hr {
width:100px;
}
You will find that the horizontal rule extends out of the parent by 10px. I'm trying to get it to ignore the padding that everything else in the parent div needs.
I'm aware that I could make a separate div for everything else; this is not the solution I'm looking for.
Easy fix, just do
margin:-10px
on the hr.
For image purpose you can do something like this
img {
width: calc(100% + 20px); // twice the value of the parent's padding
margin-left: -10px; // -1 * parent's padding
}
In large this question has been answered but in small parts by everyone. I dealt with this just a minute ago.
I wanted to have a button tray at the bottom of a panel where the panel has 30px all around. The button tray had to be flush bottom and sides.
.panel
{
padding: 30px;
}
.panel > .actions
{
margin: -30px;
margin-top: 30px;
padding: 30px;
width: auto;
}
I did a demo here with more flesh to drive the idea. However the key elements above are offset any parent padding with matching negative margins on the child. Then most critical if you want to run the child full-width then set width to auto. (as mentioned in a comment above by schlingel).
Another solution:
position: absolute;
top: 0;
left: 0;
just change the top/right/bottom/left to your case.
Kinda late.But it just takes a bit of math.
.content {
margin-top: 50px;
background: #777;
padding: 30px;
padding-bottom: 0;
font-size: 11px;
border: 1px dotted #222;
}
.bottom-content {
background: #999;
width: 100%; /* you need this for it to work */
margin-left: -30px; /* will touch very left side */
padding-right: 60px; /* will touch very right side */
}
<div class='content'>
<p>A paragraph</p>
<p>Another paragraph.</p>
<p>No more content</p>
<div class='bottom-content'>
I want this div to ignore padding.
</div>
I don't have Windows so I didn't test this in IE.
fiddle:
fiddle example..
If you have a parent container with vertical padding and you want something (e.g. an image) inside that container to ignore its vertical padding you can set a negative, but equal, margin for both 'top' and 'bottom':
margin-top: -100px;
margin-bottom: -100px;
The actual value doesn't appear to matter much. Haven't tried this for horizontal paddings.
margin: 0 -10px;
is better than
margin: -10px;
The later sucks content vertically into it.
Here is another way to do it.
<style>
.padded-element{margin: 0px; padding: 10px;}
.padded-element img{margin-left: -10px; width: calc(100% + 10px + 10px);}
</style>
<p class="padded-element">
<img src="https://images.pexels.com/photos/3014019/pexels-photo-3014019.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940">
</p>
Here are some examples on repl.it: https://repl.it/#bryku/LightgrayBleakIntercept
Your parent is 120px wide - that is 100 width + 20 padding on each side so you need to make your line 120px wide. Here's the code. Next time note that padding adds up to element width.
#parent
{
width: 100px;
padding: 10px;
background-color: Red;
}
hr
{
width: 120px;
margin:0 -10px;
position:relative;
}
If your after a way for the hr to go straight from the left side of a screen to the right this is the code to use to ensure the view width isn't effected.
hr {
position: absolute;
left: 0;
right: 0;
}
The problem could come down to which box model you're using. Are you using IE?
When IE is in quirks mode, width is the outer width of your box, which means the padding will be inside. So the total area left inside the box is 100px - 2 * 10px = 80px in which case your 100px wide <hr> will not look right.
If you're in standards mode, width is the inner width of your box, and padding is added outside. So the total width of the box is 100px + 2 * 10px = 120px leaving exactly 100px inside the box for your <hr>.
To solve it, either adjust your CSS values for IE. (Check in Firefox to see if it looks okay there). Or even better, set a document type to kick the browser into strict mode - where also IE follows the standard box model.
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
"http://www.w3.org/TR/html4/strict.dtd">
<html>
...
http://www.quirksmode.org/css/quirksmode.html
You just need to add negative margins to the child that match the padding of the parent. No need to set a width, change the box-sizing, or use absolute positioning.
#parent {
padding: 10px;
width: 100px;
}
hr {
margin-right: -10px;
margin-left: -10px;
// For modern browsers you can use margin-inline: -10px
}
The reason you don't need to set a width is because the hr element is a block element. It's width defaults to "auto", which means it will expand to fill it's parent (minus padding, margin, and border).
easy fix.. add to parent div:
box-sizing: border-box;