Break elements onto new line with flex-grow and flex-wrap - html

I have a parent div (.tags) that contains links and a title.
The parent div is set to display: flex; with flex-wrap: wrap;.
I would like the link elements to break onto a new line, clearing the title when the wrap effect takes place.
I have tried using flex-grow: 1 on the title, but this makes it push the links to the right of the screen at all times, which is not what I am after.
I have attached the code I have so far, but here is a link to the Codepen
What I am trying to achieve:
Default - the width of the screen is large enough so nothing wraps and everything is on one line >
Wrapped - the width of the screen is smaller, the wrap has occurred - the title now has 100% width and the links clear it >
Note that the number of links could vary.
.container {
background: lightgray;
width: 100%;
}
.tags {
display: flex;
flex-wrap: wrap;
align-items: center;
justify-content: flex-start;
}
.tags span {
margin: 1rem;
}
.tags .tag {
margin: 0.2rem;
padding: 0.2rem;
background: dodgerblue;
color: white;
}
<div class="container">
<div class="tags">
<span>Tagged in:</span>
<a class="tag" href="#">capabilities</a>
<a class="tag" href="#">sales</a>
</div>
</div>

Yes, with a change in the structure.
Wrap the tags in their own div with flex:1. Then it will expand automatically and the tags will drop to the second line when the wrap occurs.
.container {
background: lightgray;
width: 100%;
}
.tags {
display: flex;
flex-wrap: wrap;
align-items: center;
justify-content: flex-start;
}
.tags span {
margin: 0 1rem;
}
.tags .tag-wrap {
display: flex;
flex: 1;
}
.tags .tag {
margin: 0.2rem;
padding: 0.2rem;
background: dodgerblue;
color: white;
}
<div class="container">
<div class="tags">
<span>Tagged in:</span>
<div class="tag-wrap">
<a class="tag" href="#">capabilities</a>
<a class="tag" href="#">sales</a>
</div>
</div>
</div>
Codepen Demo

flex grow of 1, flex shrink of 0, flex basis auto:
span {
flex:1 0 auto;
}

Related

Flex box isn't filling remaining space when using flex-grow 1

I am trying to fill the remaining space of a containing flex box with the green div. I want the top flex row (blue) to only be the height of its contents and then the row below (green) to fill the rest. For some reason it just seems to split the flex rows evenly down the div. I have read a few questions on here already which all say to make sure the containing div has its height set to 100%. I have set the containing div height to 200px as this is my desired height, but I have also tried adding another container within this to 100% to no avail. I've also made sure to set the flex-grow property on the second row to 1. Every time I think I'm beginning to understand flex it throws another curve ball and it's driving me up the wall. Please help! Thank you.
P.S. for some reason the HTML code snippet below refuses to include the first line of my html but it is contained in the following div: <div class="rmCtrlList_item"
.rmCtrlList_item {
width: 80vw;
margin: 3vw 8.5vw;
height: 200px;
background-color: $primary-color;
border-radius: 10px;
padding: 5px;
display: flex;
flex-flow: row;
flex-wrap: wrap;
// ROWS
&_row {
width: 100%;
display: flex;
flex-direction: row;
flex-wrap: wrap;
}
#row-1 {
//max-height: 20px;
background-color: blue;
}
#row-2 {
flex-grow: 1;
align-items: center;
justify-content: center;
background-color: green;
}
// COLUMNS
&_col {
text-align: left;
flex-direction: column;
}
#col-1b {
flex-grow: 1;
}
}
<div class="rmCtrlList_item">
<div class="rmCtrlList_item_row" id="row-1">
<div class="rmCtrlList_item_col" id="col-1a">
<i class="icon__panel-2 fas fa-lightbulb"></i>
</div>
<div class="rmCtrlList_item_col" id="col-1b">
<a href="lights.html">
<h1 class="panel__title">Lights</h1>
</a>
</div>
<div class="rmCtrlList_item_col" id="col-1c">
<i class="icon__enlarge fas fa-plus-circle"></i>
</div>
</div>
<div class="rmCtrlList_item_row" id="row-2">
div to fill remaining space
</div>
</div>
how about to use flex-direction and below code what I used? green will fill ramaining space automatically, if you use its height's 100%
.container{
display: flex;
flex-direction: column;
width: 200px;
height: 300px;
border: 1px solid black;
}
.blue{
width: 100%;
height: 90px; /*change only blue's height size, green will be filled automatically*/
background: blue;
}
.green{
width: 100%;
height: 100%;
background: green;
}
<div class="container">
<div class="blue"></div>
<div class="green"></div>
</div>

How to fill remaining space on last line for wrapped text?

I'm trying to create a webapp where I need to render user entered title and content. I'd like to render all the action buttons related to the title on the same line as the last word of the title ("displays" in the demo) if the action bar fits, or on the next line if there's not enough space to fit whole action bar on the same line.
I've created a demo which results in correct rendering here: https://jsfiddle.net/mtrantalainen/h6qyv7a4/1/
(Note how this results in nice rendering in all cases, including the case where everything fits on one line on wide display, all to the way to case where buttons barely fit on a single line alone. I've tested the demo with Chrome and Firefox only.)
Same demo here inline:
header
{
display: flex;
flex-wrap: wrap;
gap: 0.5em;
}
header > span /* I would like to h1 here instead */
{
font-size: 2rem;
outline: dotted 1px #ddd;
}
.buttons
{
display: flex;
flex: 1 0 auto;
flex-wrap: nowrap;
}
.buttons a
{
display: flex;
align-items: center;
justify-content: center;
min-width: 44px;
min-height: 44px;
flex: 0 0 auto;
padding: 0.5rem;
box-sizing: border-box;
border: solid red 1px;
cursor: pointer;
}
.buttons .fill
{
flex: 1 0 auto;
background: yellow;
}
<header>
<span>Here's</span> <span>lots</span> <span>of</span> <span>text</span> <span>as</span> <span>a</span> <span>header</span> <span>which</span> <span>cannot</span> <span>easily</span> <span>fit</span> <span>on</span> <span>one</span> <span>line</span> <span>on</span> <span>most</span> <span>displays</span>
<div class="buttons">
<a>1</a>
<a>2</a>
<a>3</a>
<span class="fill"></span>
<a>4 with long label</a>
<a>5</a>
</div>
</header>
Screenshot (this is also the rendering I want):
The intent is to keep all the action buttons with red borders on the same line and fit the whole action button block on the line with the last word of the title, if possible. The yellow area in the middle of action bar would be transparent filler with zero or more pixels and allows positioning selected actions near the title or the right margin if there's extra space on line.
The demo works by wrapping every word in the title as a separate <span> element and flex-wrap is used to allow title to wrap and the action bar to follow on the same line.
However, this doesn't allow semantic markup because I cannot even wrap all the words in an <h1> element. In addition, the current demo doesn't play nicely with copy-pasting the title because every word will end up on separate line if copied.
Can anybody suggest any way to result in similar rendering using only HTML5 and CSS given following markup?
<header>
<h1>Here's lots of text as a header which cannot easily fit on one line on most displays</h1>
<nav class="actions">
<a>1</a>
<a>2</a>
<a>3</a>
<span class="fill"></span>
<a>4 with long label</a>
<a>5</a>
</nav>
</header>
Another possibility for the actions markup in semantic way would be
<div class="actionbar">
<nav class="titleactions">
<a>1</a>
<a>2</a>
<a>3</a>
</nav>
<nav class="extraactions">
<a>4 with long label</a>
<a>5</a>
</nav>
</div>
with the whole <header> as above. I used span.fill in the demo because it was easiest to implement and doesn't mess with the semantics too bad.
I am not sure that I understood your question well but is that what you are looking for?
header
{
display: flex;
gap: 0.5em;
}
header > h1/* I would like to h1 here instead */
{
font-size: 2rem;
outline: dotted 1px #ddd;
}
.buttons
{
display: flex;
flex: 1 0 auto;
flex-wrap: nowrap;
width: 40%;
}
.spanDiv { width: 60%}
.buttons a
{
display: flex;
align-items: center;
justify-content: center;
min-width: 44px;
min-height: 44px;
flex: 0 0 auto;
padding: 0.5rem;
box-sizing: border-box;
border: solid red 1px;
cursor: pointer;
}
.buttons .fill
{
flex: 1 0 auto;
background: yellow;
}
<header>
<div class="spanDiv">
<h1>Here's lots of text as eader which cannot easily fit on one lineon most displays</h1>
</div>
<div class="buttons">
<a>1</a>
<a>2</a>
<a>3</a>
<span class="fill"></span>
<a>4 with long label</a>
<a>5</a>
</div>
</header>
The least bad implementation I can figure out:
header
{
display: flex;
flex-wrap: wrap;
gap: 0.5em;
}
header > h1
{
display: contents;
}
header > span
{
font-size: 2rem;
outline: dotted 1px #ddd;
}
.buttons
{
display: flex;
flex: 1 0 auto;
flex-wrap: nowrap;
}
.buttons a
{
display: flex;
align-items: center;
justify-content: center;
min-width: 44px;
min-height: 44px;
flex: 0 0 auto;
padding: 0.5rem;
box-sizing: border-box;
border: solid red 1px;
cursor: pointer;
}
.buttons .fill
{
flex: 1 0 auto;
background: yellow;
}
<header>
<h1><span>Here's</span> <span>lots</span> <span>of</span> <span>text</span> <span>as</span> <span>a</span> <span>header</span> <span>which</span> <span>cannot</span> <span>easily</span> <span>fit</span> <span>on</span> <span>one</span> <span>line</span> <span>on</span> <span>most</span> <span>displays</span></h1>
<div class="buttons">
<a>1</a>
<a>2</a>
<a>3</a>
<span class="fill"></span>
<a>4 with long label</a>
<a>5</a>
</div>
</header>
Problematic parts remaining:
Copy-paste is still broken (tested with Chrome only).
The display: contents browser support is still a bit poor.
Every word in the title still needs a separate wrapper <span> element.
Words in the title cannot ever hyphenate.
span.fill needed to introduce the space.

Center a paragraph element when text wraps without centering the text using flex

Before this gets down-voted into oblivion, let me say I've searched through the numerous SO questions that looked similar to this one, but none that I found addressed my issue.
I'm using flexbox to center some <p> tags both horizontally and vertically within an element. I don't want to center the text within the <p> element, just center the <p> elements themselves.
.app-outer {
display: flex;
flex-direction: column;
}
.app {
display: flex;
flex-direction: column;
height: 100%;
justify-content: center;
align-items: center;
}
.app p {
display: inline-block;
}
.title-bar {
background-color: #202225;
color: #72767D;
font-weight: bold;
padding: 0 0 2px 8px;
display: flex;
flex-direction: row;
width: 100%;
}
<div class="app-outer">
<div class="title-bar">
<span class="draggable">Skipwars</span>
<span class="btns">
<button id="btn-minimize" tabindex="-1">-</button><!--
--><button id="btn-close" tabindex="-1">×</button>
</span>
</div>
<div class="app">
<p>Add a browser source pointed at <!--http://localhost:3333/--></p>
<p>
Optional parameter <code style="display:inline">threshold=n</code>. ex: http://localhost:3333/?threshold=4 (default 8)
</p>
</div>
</div>
My app is 300px wide (I'm using electron).
As you can see, if the paragraph doesn't have enough text for multiple lines, it works fine. If it does, the paragraph expands to the width of .app, and the text is left-justified.
This is what I'm looking for:
I thought that setting the paragraphs' display to inline-block would do the trick, but it doesn't.
It's working as expected, but since the <p> tags are the same width as the viewport, they are flush to the left when the vp is too small, and in this case the url is so long that it wraps to the next line and leaves a space on the first, making it appear that it is not centered. I added some horizontal padding to the <p> tags to better illustrate:
.app-outer {
display: flex;
flex-direction: column;
}
.app {
display: flex;
flex-direction: column;
height: 100%;
justify-content: center;
align-items: center;
}
.app p {
display: inline-block;
padding: 0 20px;
}
.title-bar {
background-color: #202225;
color: #72767D;
font-weight: bold;
padding: 0 0 2px 8px;
display: flex;
flex-direction: row;
width: 100%;
}
<div class="app-outer">
<div class="title-bar">
<span class="draggable">Skipwars</span>
<span class="btns">
<button id="btn-minimize" tabindex="-1">-</button><!--
--><button id="btn-close" tabindex="-1">×</button>
</span>
</div>
<div class="app">
<p>Add a browser source pointed at
<!--http://localhost:3333/--></p>
<p>
Optional parameter <code style="display:inline">threshold=n</code>. ex: http://localhost:3333/?threshold=4 (default 8)
</p>
</div>
</div>

CSS Flexbox how to centre divs which are different size? [duplicate]

Imagine the following layout, where the dots represent the space between the boxes:
[Left box]......[Center box]......[Right box]
When I remove the right box, I like the center box to still be in the center, like so:
[Left box]......[Center box].................
The same goes for if I would remove the left box.
................[Center box].................
Now when the content within the center box gets longer, it will take up as much available space as needed while remaining centered. The left and right box will never shrink and thus when where is no space left the overflow:hidden and text-overflow: ellipsis will come in effect to break the content;
[Left box][Center boxxxxxxxxxxxxx][Right box]
All the above is my ideal situation, but I have no idea how to accomplish this effect. Because when I create a flex structure like so:
.parent {
display : flex; // flex box
justify-content : space-between; // horizontal alignment
align-content : center; // vertical alignment
}
If the left and right box would be exactly the same size, I get the desired effect. However when one of the two is from a different size the centered box is not truly centered anymore.
Is there anyone that can help me?
Update
A justify-self would be nice, this would be ideal:
.leftBox {
justify-self : flex-start;
}
.rightBox {
justify-self : flex-end;
}
If the left and right boxes would be exactly the same size, I get the desired effect. However when one of the two is a different size the centered box is not truly centered anymore. Is there anyone that can help me?
Here's a method using flexbox to center the middle item, regardless of the width of siblings.
Key features:
pure CSS
no absolute positioning
no JS/jQuery
Use nested flex containers and auto margins:
.container {
display: flex;
}
.box {
flex: 1;
display: flex;
justify-content: center;
}
.box:first-child > span { margin-right: auto; }
.box:last-child > span { margin-left: auto; }
/* non-essential */
.box {
align-items: center;
border: 1px solid #ccc;
background-color: lightgreen;
height: 40px;
}
p {
text-align: center;
margin: 5px 0 0 0;
}
<div class="container">
<div class="box"><span>short text</span></div>
<div class="box"><span>centered text</span></div>
<div class="box"><span>loooooooooooooooong text</span></div>
</div>
<p>↑<br>true center</p>
Here's how it works:
The top-level div (.container) is a flex container.
Each child div (.box) is now a flex item.
Each .box item is given flex: 1 in order to distribute container space equally (more details).
Now the items are consuming all space in the row and are equal width.
Make each item a (nested) flex container and add justify-content: center.
Now each span element is a centered flex item.
Use flex auto margins to shift the outer spans left and right.
You could also forgo justify-content and use auto margins exclusively.
But justify-content can work here because auto margins always have priority.
8.1. Aligning with auto
margins
Prior to alignment via justify-content and align-self, any
positive free space is distributed to auto margins in that dimension.
Use three flex items in the container
Set flex: 1 to the first and last ones. This makes them grow equally to fill the available space left by the middle one.
Thus, the middle one will tend to be centered.
However, if the first or last item has a wide content, that flex item will also grow due to the new min-width: auto initial value.
Note Chrome doesn't seem to implement this properly. However, you can set min-width to -webkit-max-content or -webkit-min-content and it will work too.
Only in that case the middle element will be pushed out of the center.
.outer-wrapper {
display: flex;
}
.item {
background: lime;
margin: 5px;
}
.left.inner-wrapper, .right.inner-wrapper {
flex: 1;
display: flex;
min-width: -webkit-min-content; /* Workaround to Chrome bug */
}
.right.inner-wrapper {
justify-content: flex-end;
}
.animate {
animation: anim 5s infinite alternate;
}
#keyframes anim {
from { min-width: 0 }
to { min-width: 100vw; }
}
<div class="outer-wrapper">
<div class="left inner-wrapper">
<div class="item animate">Left</div>
</div>
<div class="center inner-wrapper">
<div class="item">Center</div>
</div>
<div class="right inner-wrapper">
<div class="item">Right</div>
</div>
</div>
<!-- Analogous to above --> <div class="outer-wrapper"><div class="left inner-wrapper"><div class="item">Left</div></div><div class="center inner-wrapper"><div class="item animate">Center</div></div><div class="right inner-wrapper"><div class="item">Right</div></div></div><div class="outer-wrapper"><div class="left inner-wrapper"><div class="item">Left</div></div><div class="center inner-wrapper"><div class="item">Center</div></div><div class="right inner-wrapper"><div class="item animate">Right</div></div></div>
The key is to use flex-basis. Then the solution is simple as:
.parent {
display: flex;
justify-content: space-between;
}
.left, .right {
flex-grow: 1;
flex-basis: 0;
}
CodePen is available here.
Here's an answer that uses grid instead of flexbox. This solution doesn't require extra grandchild elements in the HTML like the accepted answer does. And it works correctly even when the content on one side gets long enough to overflow into the center, unlike the grid answer from 2019.
The one thing this solution doesn't do is show an ellipsis or hide the extra content in the center box, as described in the question.
section {
display: grid;
grid-template-columns: 1fr auto 1fr;
}
section > *:last-child {
white-space: nowrap;
text-align: right;
}
/* not essential; just for demo purposes */
section {
background-color: #eee;
font-family: helvetica, arial;
font-size: 10pt;
padding: 4px;
}
section > * {
border: 1px solid #bbb;
padding: 2px;
}
<section>
<div>left</div>
<div>center</div>
<div>right side is longer</div>
</section>
<section>
<div>left</div>
<div>center</div>
<div>right side is much, much longer</div>
</section>
<section>
<div>left</div>
<div>center</div>
<div>right side is much, much longer, super long in fact</div>
</section>
Instead of defaulting to using flexbox, using grid solves it in 2 lines of CSS without additional markup inside the top level children.
HTML:
<header class="header">
<div class="left">variable content</div>
<div class="middle">variable content</div>
<div class="right">variable content which happens to be very long</div>
</header>
CSS:
.header {
display: grid;
grid-template-columns: [first] 20% auto [last] 20%;
}
.middle {
/* use either */
margin: 0 auto;
/* or */
text-align: center;
}
Flexbox rocks but shouldn't be the answer for everything. In this case grid is clearly the cleanest option.
Even made a codepen for your testing pleasure:
https://codepen.io/anon/pen/mooQOV
You can do this like so:
.bar {
display: flex;
background: #B0BEC5;
}
.l {
width: 50%;
flex-shrink: 1;
display: flex;
}
.l-content {
background: #9C27B0;
}
.m {
flex-shrink: 0;
}
.m-content {
text-align: center;
background: #2196F3;
}
.r {
width: 50%;
flex-shrink: 1;
display: flex;
flex-direction: row-reverse;
}
.r-content {
background: #E91E63;
}
<div class="bar">
<div class="l">
<div class="l-content">This is really long content. More content. So much content.</div>
</div>
<div class="m">
<div class="m-content">This will always be in the center.</div>
</div>
<div class="r">
<div class="r-content">This is short.</div>
</div>
</div>
Here is another way to do it, using display: flex in the parents and childs:
.Layout{
display: flex;
justify-content: center;
}
.Left{
display: flex;
justify-content: flex-start;
width: 100%;
}
.Right{
display: flex;
justify-content: flex-end;
width: 100%;
}
<div class = 'Layout'>
<div class = 'Left'>I'm on the left</div>
<div class = 'Mid'>Centered</div>
<div class = 'Right'>I'm on the right</div>
</div>
A slightly more robust grid solution looks like this:
.container {
overflow: hidden;
border-radius: 2px;
padding: 4px;
background: orange;
display: grid;
grid-template-columns: minmax(max-content, 1fr) auto minmax(max-content, 1fr);
}
.item > div {
display: inline-block;
padding: 6px;
border-radius: 2px;
background: teal;
}
.item:last-child > div {
float: right;
}
<div class="container">
<div class="item"><div contenteditable>edit the text to test the layout</div></div>
<div class="item"><div contenteditable>just click me and</div></div>
<div class="item"><div contenteditable>edit</div></div>
</div>
And here you can see it in Codepen: https://codepen.io/benshope2234/pen/qBmZJWN
I wanted the exact result shown in the question, I combined answers from gamliela and Erik Martín Jordán and it works best for me.
.parent {
display: flex;
justify-content: space-between;
}
.left, .right {
flex-grow: 1;
flex-basis: 0;
}
.right {
display: flex;
justify-content: flex-end;
}
you can also use this simple way to reach exact center alignment for middle element :
.container {
display: flex;
justify-content: space-between;
}
.container .sibling {
display: flex;
align-items: center;
height: 50px;
background-color: gray;
}
.container .sibling:first-child {
width: 50%;
display: flex;
justify-content: space-between;
}
.container .sibling:last-child {
justify-content: flex-end;
width: 50%;
box-sizing: border-box;
padding-left: 100px; /* .center's width divided by 2 */
}
.container .sibling:last-child .content {
text-align: right;
}
.container .sibling .center {
height: 100%;
width: 200px;
background-color: lightgreen;
transform: translateX(50%);
}
codepen: https://codepen.io/ErAz7/pen/mdeBKLG
Althought I might be late on this one, all those solutions seems complicated and may not work depending on the cases you're facing.
Very simply, just wrap the component you want to center with position : absolute, while letting the other two with justify-content : space-between, like so :
CSS:
.container {
display: flex;
justify-content: space-between;
align-items: center;
background-color: lightgray;
}
.middle {
position: absolute;
margin-left: auto;
margin-right: auto;
/* You should adapt percentages here if you have a background ; else, left: 0 and right: 0 should do the trick */
left: 40%;
right: 40%;
text-align: center;
}
/* non-essential, copied from #Brian Morearty answer */
.element {
border: 1px solid #ccc;
background-color: lightgreen;
}
p {
margin: 5px;
padding: 5px;
}
<div class="container">
<p class="element">First block</p>
<p class="middle element">Middle block</p>
<p class="element">Third THICC blockkkkkkkkk</p>
</div>
Michael Benjamin has a decent answer but there is no reason it can't / shouldn't be simplified further:
.container {
display: flex;
}
.box {
flex: 1;
display: flex;
justify-content: center;
}
.box:first-child { justify-content: left; }
.box:last-child { justify-content: right; }
And html
<div class="container">
<div class="box">short text</div>
<div class="box">centered tex</div>
<div class="box">loooooooooooooooong text</div>
</div>

Keep the middle item centered when side items have different widths

Imagine the following layout, where the dots represent the space between the boxes:
[Left box]......[Center box]......[Right box]
When I remove the right box, I like the center box to still be in the center, like so:
[Left box]......[Center box].................
The same goes for if I would remove the left box.
................[Center box].................
Now when the content within the center box gets longer, it will take up as much available space as needed while remaining centered. The left and right box will never shrink and thus when where is no space left the overflow:hidden and text-overflow: ellipsis will come in effect to break the content;
[Left box][Center boxxxxxxxxxxxxx][Right box]
All the above is my ideal situation, but I have no idea how to accomplish this effect. Because when I create a flex structure like so:
.parent {
display : flex; // flex box
justify-content : space-between; // horizontal alignment
align-content : center; // vertical alignment
}
If the left and right box would be exactly the same size, I get the desired effect. However when one of the two is from a different size the centered box is not truly centered anymore.
Is there anyone that can help me?
Update
A justify-self would be nice, this would be ideal:
.leftBox {
justify-self : flex-start;
}
.rightBox {
justify-self : flex-end;
}
If the left and right boxes would be exactly the same size, I get the desired effect. However when one of the two is a different size the centered box is not truly centered anymore. Is there anyone that can help me?
Here's a method using flexbox to center the middle item, regardless of the width of siblings.
Key features:
pure CSS
no absolute positioning
no JS/jQuery
Use nested flex containers and auto margins:
.container {
display: flex;
}
.box {
flex: 1;
display: flex;
justify-content: center;
}
.box:first-child > span { margin-right: auto; }
.box:last-child > span { margin-left: auto; }
/* non-essential */
.box {
align-items: center;
border: 1px solid #ccc;
background-color: lightgreen;
height: 40px;
}
p {
text-align: center;
margin: 5px 0 0 0;
}
<div class="container">
<div class="box"><span>short text</span></div>
<div class="box"><span>centered text</span></div>
<div class="box"><span>loooooooooooooooong text</span></div>
</div>
<p>↑<br>true center</p>
Here's how it works:
The top-level div (.container) is a flex container.
Each child div (.box) is now a flex item.
Each .box item is given flex: 1 in order to distribute container space equally (more details).
Now the items are consuming all space in the row and are equal width.
Make each item a (nested) flex container and add justify-content: center.
Now each span element is a centered flex item.
Use flex auto margins to shift the outer spans left and right.
You could also forgo justify-content and use auto margins exclusively.
But justify-content can work here because auto margins always have priority.
8.1. Aligning with auto
margins
Prior to alignment via justify-content and align-self, any
positive free space is distributed to auto margins in that dimension.
Use three flex items in the container
Set flex: 1 to the first and last ones. This makes them grow equally to fill the available space left by the middle one.
Thus, the middle one will tend to be centered.
However, if the first or last item has a wide content, that flex item will also grow due to the new min-width: auto initial value.
Note Chrome doesn't seem to implement this properly. However, you can set min-width to -webkit-max-content or -webkit-min-content and it will work too.
Only in that case the middle element will be pushed out of the center.
.outer-wrapper {
display: flex;
}
.item {
background: lime;
margin: 5px;
}
.left.inner-wrapper, .right.inner-wrapper {
flex: 1;
display: flex;
min-width: -webkit-min-content; /* Workaround to Chrome bug */
}
.right.inner-wrapper {
justify-content: flex-end;
}
.animate {
animation: anim 5s infinite alternate;
}
#keyframes anim {
from { min-width: 0 }
to { min-width: 100vw; }
}
<div class="outer-wrapper">
<div class="left inner-wrapper">
<div class="item animate">Left</div>
</div>
<div class="center inner-wrapper">
<div class="item">Center</div>
</div>
<div class="right inner-wrapper">
<div class="item">Right</div>
</div>
</div>
<!-- Analogous to above --> <div class="outer-wrapper"><div class="left inner-wrapper"><div class="item">Left</div></div><div class="center inner-wrapper"><div class="item animate">Center</div></div><div class="right inner-wrapper"><div class="item">Right</div></div></div><div class="outer-wrapper"><div class="left inner-wrapper"><div class="item">Left</div></div><div class="center inner-wrapper"><div class="item">Center</div></div><div class="right inner-wrapper"><div class="item animate">Right</div></div></div>
The key is to use flex-basis. Then the solution is simple as:
.parent {
display: flex;
justify-content: space-between;
}
.left, .right {
flex-grow: 1;
flex-basis: 0;
}
CodePen is available here.
Here's an answer that uses grid instead of flexbox. This solution doesn't require extra grandchild elements in the HTML like the accepted answer does. And it works correctly even when the content on one side gets long enough to overflow into the center, unlike the grid answer from 2019.
The one thing this solution doesn't do is show an ellipsis or hide the extra content in the center box, as described in the question.
section {
display: grid;
grid-template-columns: 1fr auto 1fr;
}
section > *:last-child {
white-space: nowrap;
text-align: right;
}
/* not essential; just for demo purposes */
section {
background-color: #eee;
font-family: helvetica, arial;
font-size: 10pt;
padding: 4px;
}
section > * {
border: 1px solid #bbb;
padding: 2px;
}
<section>
<div>left</div>
<div>center</div>
<div>right side is longer</div>
</section>
<section>
<div>left</div>
<div>center</div>
<div>right side is much, much longer</div>
</section>
<section>
<div>left</div>
<div>center</div>
<div>right side is much, much longer, super long in fact</div>
</section>
Instead of defaulting to using flexbox, using grid solves it in 2 lines of CSS without additional markup inside the top level children.
HTML:
<header class="header">
<div class="left">variable content</div>
<div class="middle">variable content</div>
<div class="right">variable content which happens to be very long</div>
</header>
CSS:
.header {
display: grid;
grid-template-columns: [first] 20% auto [last] 20%;
}
.middle {
/* use either */
margin: 0 auto;
/* or */
text-align: center;
}
Flexbox rocks but shouldn't be the answer for everything. In this case grid is clearly the cleanest option.
Even made a codepen for your testing pleasure:
https://codepen.io/anon/pen/mooQOV
You can do this like so:
.bar {
display: flex;
background: #B0BEC5;
}
.l {
width: 50%;
flex-shrink: 1;
display: flex;
}
.l-content {
background: #9C27B0;
}
.m {
flex-shrink: 0;
}
.m-content {
text-align: center;
background: #2196F3;
}
.r {
width: 50%;
flex-shrink: 1;
display: flex;
flex-direction: row-reverse;
}
.r-content {
background: #E91E63;
}
<div class="bar">
<div class="l">
<div class="l-content">This is really long content. More content. So much content.</div>
</div>
<div class="m">
<div class="m-content">This will always be in the center.</div>
</div>
<div class="r">
<div class="r-content">This is short.</div>
</div>
</div>
Here is another way to do it, using display: flex in the parents and childs:
.Layout{
display: flex;
justify-content: center;
}
.Left{
display: flex;
justify-content: flex-start;
width: 100%;
}
.Right{
display: flex;
justify-content: flex-end;
width: 100%;
}
<div class = 'Layout'>
<div class = 'Left'>I'm on the left</div>
<div class = 'Mid'>Centered</div>
<div class = 'Right'>I'm on the right</div>
</div>
A slightly more robust grid solution looks like this:
.container {
overflow: hidden;
border-radius: 2px;
padding: 4px;
background: orange;
display: grid;
grid-template-columns: minmax(max-content, 1fr) auto minmax(max-content, 1fr);
}
.item > div {
display: inline-block;
padding: 6px;
border-radius: 2px;
background: teal;
}
.item:last-child > div {
float: right;
}
<div class="container">
<div class="item"><div contenteditable>edit the text to test the layout</div></div>
<div class="item"><div contenteditable>just click me and</div></div>
<div class="item"><div contenteditable>edit</div></div>
</div>
And here you can see it in Codepen: https://codepen.io/benshope2234/pen/qBmZJWN
I wanted the exact result shown in the question, I combined answers from gamliela and Erik Martín Jordán and it works best for me.
.parent {
display: flex;
justify-content: space-between;
}
.left, .right {
flex-grow: 1;
flex-basis: 0;
}
.right {
display: flex;
justify-content: flex-end;
}
you can also use this simple way to reach exact center alignment for middle element :
.container {
display: flex;
justify-content: space-between;
}
.container .sibling {
display: flex;
align-items: center;
height: 50px;
background-color: gray;
}
.container .sibling:first-child {
width: 50%;
display: flex;
justify-content: space-between;
}
.container .sibling:last-child {
justify-content: flex-end;
width: 50%;
box-sizing: border-box;
padding-left: 100px; /* .center's width divided by 2 */
}
.container .sibling:last-child .content {
text-align: right;
}
.container .sibling .center {
height: 100%;
width: 200px;
background-color: lightgreen;
transform: translateX(50%);
}
codepen: https://codepen.io/ErAz7/pen/mdeBKLG
Althought I might be late on this one, all those solutions seems complicated and may not work depending on the cases you're facing.
Very simply, just wrap the component you want to center with position : absolute, while letting the other two with justify-content : space-between, like so :
CSS:
.container {
display: flex;
justify-content: space-between;
align-items: center;
background-color: lightgray;
}
.middle {
position: absolute;
margin-left: auto;
margin-right: auto;
/* You should adapt percentages here if you have a background ; else, left: 0 and right: 0 should do the trick */
left: 40%;
right: 40%;
text-align: center;
}
/* non-essential, copied from #Brian Morearty answer */
.element {
border: 1px solid #ccc;
background-color: lightgreen;
}
p {
margin: 5px;
padding: 5px;
}
<div class="container">
<p class="element">First block</p>
<p class="middle element">Middle block</p>
<p class="element">Third THICC blockkkkkkkkk</p>
</div>
Michael Benjamin has a decent answer but there is no reason it can't / shouldn't be simplified further:
.container {
display: flex;
}
.box {
flex: 1;
display: flex;
justify-content: center;
}
.box:first-child { justify-content: left; }
.box:last-child { justify-content: right; }
And html
<div class="container">
<div class="box">short text</div>
<div class="box">centered tex</div>
<div class="box">loooooooooooooooong text</div>
</div>