Force max-height on a CSS grid row - css

I have a simple grid with 2 rows: one serves as a header, the other one is a list of items. I want my grid to have a max height, and I want to be able to scroll my list of items.
Link to the codepen
<div class="grid">
<div class="two">
Two
</div>
<div class="three">
<div class="body">
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
</div>
</div>
</div>
.grid {
display: grid;
grid-template-rows: 50px min-content;
max-height: 300px;
background: blue;
overflow-y: hidden;
}
.two {
background: green;
}
.three {
background: #00000044;
max-height: 400px;
}
.body {
max-width: 400px;
background: orange;
margin: auto;
max-height: 100%;
overflow-y: scroll;
}
My .grid item has a max height, but still, if I had more items to my list, the whole grid expands. Is there a way to make sure my max height is taken into account ?

If you want to only scroll the list of items and keep the header in the same position you can use position: sticky, updated example:
.grid {
display: grid;
grid-template-rows: 50px min-content;
max-height: 300px;
background: blue;
overflow-y: auto;
}
.two {
background: green;
position: sticky;
top: 0;
}
.three {
background: #00000044;
}
.body {
max-width: 400px;
background: orange;
margin: auto;
max-height: 100%;
overflow-y: scroll;
}
<div class="grid">
<div class="two">
Two
</div>
<div class="three">
<div class="body">
<p>Section first</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section</p>
<p>Section last</p>
</div>
</div>
</div>

instead of overflow hidden use auto
code :
.grid {
display: grid;
grid-template-rows: 50px min-content;
max-height: 300px;
background: blue;
overflow-y: hidden;
}
.two {
background: green;
}
.three {
background: #00000044;
max-height: 400px;
}
.body {
max-width: 400px;
background: orange;
margin: auto;
max-height: 100%;
overflow-y: auto;
}

Is there some reason you can't set max-height to 300px on both .grid and .body ?
.body { max-height: 300px; }

Related

Sizing a grid column based on a child's aspect ratio

My question is similar to this one: I'm trying to contain an aspect-ratio element within its parent element. One difference though, this aspect-ratio element has siblings—a header and a footer—and all this nice family should be center-aligned and share a common width.
Images are worth a thousand words:
GIFs are worth a thousand images:
I'm close to that result, but I'm not quite there yet:
body {
height: 100%;
margin: 0;
}
html {
background-color: lightgrey;
height: 100%;
}
#footer,
#header {
background-color: blue;
height: 50px;
}
#paper {
aspect-ratio: 1;
background-color: red;
margin: auto;
max-height: 100%;
overflow: hidden;
width: 100%;
}
#wrapper {
align-content: center;
display: grid;
height: 100%;
}
<div id="wrapper">
<div id="header"></div>
<div id="paper"></div>
<div id="footer"></div>
</div>
Any CSS wizard to help me out?
Not sure if you can get all the requirements but here is the best I could do (seems to work on chrome only)
body {
background-color: lightgrey;
margin: 0;
}
#footer,
#header {
background-color: blue;
height: 50px;
}
#paper {
aspect-ratio: 1;
background-color: red;
max-height: 100%;
max-width: 100vw;
}
#wrapper {
place-content: center;
display: grid;
height: 100vmin;
margin-block: max(0px,50vh - 50vmin);
grid-template-rows: auto minmax(0, 1fr) auto;
}
<div id="wrapper">
<div id="header"></div>
<div id="paper"></div>
<div id="footer"></div>
</div>
If the 50px is known you can do like below:
body {
background-color: lightgrey;
margin: 0;
--h: 50px; /* the fixed height */
}
#footer,
#header {
background-color: blue;
height: var(--h);
}
#paper {
aspect-ratio: 1;
background-color: red;
width: min(100vw,100vh - 2*var(--h));
}
#wrapper {
place-content: center;
display: grid;
height: min(100vh, 100vw + 2*var(--h));
margin-block: max(0px, (100vh - 100vw - 2*var(--h))/2);
grid-template-rows: auto minmax(0, 1fr) auto;
}
<div id="wrapper">
<div id="header"></div>
<div id="paper"></div>
<div id="footer"></div>
</div>
Try this solution, all the magic happens in grid-template-columns and grid-template-rows.
html {
background-color: lightgrey;
height: 100%;
}
body {
height: 100%;
margin: 0;
}
#wrapper {
--footer-header-height: 50px;
align-content: center;
display: grid;
height: 100vh;
grid-template-columns: 1fr minmax(auto, calc(100vh - var(--footer-header-height) * 2)) 1fr;
grid-template-rows: auto minmax(auto, 100vw) auto;
}
#footer,
#header {
grid-column: 2;
background-color: blue;
height: var(--footer-header-height);
}
#paper {
grid-column: 2;
aspect-ratio: 1 / 1;
background-color: red;
}
<div id="wrapper">
<div id="header"></div>
<div id="paper"></div>
<div id="footer"></div>
</div>
Actually Container Queries enable us to solve this kind of problems elegantly.
Support for this feature is currently very bad (see here), but it's part of Interop 2022 so I guess it'll look different by the end of the year.
I post this as an answer as it might help someone in the future 👽👋
Note that you currently need to turn on a flag on Chrome to be able to test it.
body {
container-type: size;
height: 100%;
margin: 0;
}
html {
background-color: lightgrey;
height: 100%;
}
#footer,
#header {
background-color: blue;
}
#paper {
background-color: red;
}
#wrapper {
align-content: center;
display: grid;
grid-template-columns: min(100cqi, (100cqb - 100px));
grid-template-rows: 50px min(100cqb - 100px, 100cqi) 50px;
justify-content: center;
}
<div id="wrapper">
<div id="header"></div>
<div id="paper"></div>
<div id="footer"></div>
</div>
Here's the same code but relying on viewport units (works in all browsers):
body {
height: 100%;
margin: 0;
}
html {
background-color: lightgrey;
height: 100%;
}
#footer,
#header {
background-color: blue;
}
#paper {
background-color: red;
}
#wrapper {
align-content: center;
display: grid;
grid-template-columns: min(100vw, (100vh - 100px));
grid-template-rows: 50px min(100vh - 100px, 100vw) 50px;
height: 100%;
justify-content: center;
}
<div id="wrapper">
<div id="header"></div>
<div id="paper"></div>
<div id="footer"></div>
</div>

Define scroll div height by parent. Any tips?

So in resume, I have a #modal { max-height:90% } and I need to place a #footer element below and let the top remaing space to a scrollable div, but is not possible to have a scroll div without setting the height (or max-height, as far as I know).
The way I achieved this is calculating the height of the scrollable div, like so: https://codepen.io/murillotsoza/pen/xxpJPVJ (change the code view to the left/right side)
But I still think that there is a prettier solution without height calculations. Any tips?
#scroll {
max-height: calc(90vh - 18px - 50px);
overflow-y: auto;
overflow-x: hidden;
}
.item {
font-size: 18px; text-align: center;
line-height: 50px; width: 300px;
border-bottom: 1px solid #ccc;
}
#footer {
font-size: 18px; text-align: center;
line-height: 50px; width: 100%;
background-color: #333; color: white;
}
#title{
height: 18px;
background-color: black;
}
#content {
background-color: white;
}
#modal {
max-height: 90%;
overflow: hidden;
}
#background {
position: fixed;
top: 0; left: 0;
width: 100vw;
height: 100vh;
background-color: #eee;
display: flex;
justify-content: center;
align-items: center;
}
body { margin : 0; }
<div id='background'>
<div id="modal">
<div id="title"></div>
<div id="content">
<div id="scroll">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
<div class="item">5</div>
<div class="item">6</div>
</div>
<div id="footer">FOOTER</div>
</div>
</div>
</div>
Here is a modern CSS grid solution:
You can change around your grid-template fraction units to give more room to your header, scroll area and footer respectively. Currently the 80% height is divided into 4, with 1fr given to your header, 2fr given to your scroll area, and 1fr given to your footer.
* {
box-sizing: border-box;
}
html,
body {
height: 100vh;
}
body {
display: grid;
place-content: center;
margin: 0;
background-color: #eee;
}
.modal {
display: grid;
grid-template: 1fr 2fr 1fr / auto;
width: 300px;
height: 80%;
overflow: hidden;
}
header {
background-color: black;
}
.scroll {
overflow-y: auto;
}
.item {
font-size: 1.1rem;
text-align: center;
line-height: 3rem;
border-bottom: 1px solid #ccc;
}
footer {
font-size: 1.1rem;
text-align: center;
background-color: #333;
color: white;
}
<article class="modal">
<header></header>
<div class="scroll">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
<div class="item">4</div>
<div class="item">5</div>
<div class="item">6</div>
</div>
<footer>FOOTER</footer>
</article>
Codepen: https://codepen.io/zachjensz/pen/MWrBVbv

Force element width to match exactly parent width and not screen width

In the snippet below you can see that the green .bottom stops at the width of the screen using a width of 100%. Can I force the width to match exactly the parent width? In this case 1000px.
The problem is that the red .top is a variable width so setting a fixed width for the green .bottom is not an option.
.parent {
width: 700px;
}
div.container {
overflow: auto;
background-color: yellow;
display: flex;
flex-direction: column;
height: 100px;
}
div.top {
background-color: red;
height: 40px;
width: 1000px;
}
div.bottom {
background-color: green;
height: 20px;
width: 100%;
}
<div class="parent">
<div class="container">
<div class="top"></div>
<div class="bottom"></div>
</div>
</div>
Use CSS grid instead of flexbox:
.parent {
width: 700px;
}
div.container {
overflow: auto;
background-color: yellow;
display: grid;
align-content: start; /* don't forget this */
height: 100px;
}
div.top {
background-color: red;
height: 40px;
width: 1000px;
}
div.bottom {
background-color: green;
height: 20px;
}
<div class="parent">
<div class="container">
<div class="top"></div>
<div class="bottom"></div>
</div>
</div>

Horizontally-scrolling div inside a flex column

I can't seem to have a horizontally-scrolling div inside a flex column.
Codepen
.container { display: flex; margin: 20px; height: 300px; border: 1px solid blue; }
.side-nav { flex-shrink: 0; width: 100px; min-height: 100%; background: grey; }
.main { padding: 20px; }
.scrollable { overflow-x: auto; max-width: 100%; }
.long-content { width: 2000px; height: 50px; background: red; }
<div class='container'>
<div class='side-nav'>
</div>
<div class='main'>
<h1>Test</h1>
<div class='scrollable'>
<div class='long-content'>
This is supposed to scroll horizontally unless your window is super wide
</div>
</div>
<p>Some paragraph below the scrollable box</p>
</div>
</div>
If I change the max-width of .scrollable to px it would work, but I need it to fill the column.
What am I missing?
In my opinion, this is a Module"bug" (Wierd).
Anyway, one very simple solution is to use flex-basis (Instead of width).
Step 1 for main add width: 0;
.container {
display: flex;
margin: 20px;
height: 300px;
border: 1px solid blue;
}
.side-nav { flex-shrink: 0; width: 100px; min-height: 100%; background: grey; }
.main {
padding: 20px;
border: 5px dashed orange;
/* "new code" */
width: 0px;
}
.scrollable { overflow-x: auto; max-width: 100%; }
.long-content { width: 2000px; height: 50px; background: red; }
<div class='container'>
<aside class='side-nav'>
Aside
</aside>
<main class='main'>
<h1>Test</h1>
<div class='scrollable'>
<div class='long-content'>
This is supposed to scroll horizontally unless your window is super wide
</div>
</div>
<p>Some paragraph below the scrollable box</p>
</main>
</div>
Step 2 - main add flex-basis: 100%;
.container {
display: flex;
margin: 20px;
height: 300px;
border: 1px solid blue;
}
.side-nav { flex-shrink: 0; width: 100px; min-height: 100%; background: grey; }
.main {
padding: 20px;
border: 5px dashed orange;
/* "new code" */
width: 0px;
flex-basis: 100%;
}
.scrollable { overflow-x: auto; max-width: 100%; }
.long-content { width: 2000px; height: 50px; background: red; }
<div class='container'>
<aside class='side-nav'>
Aside
</aside>
<main class='main'>
<h1>Test</h1>
<div class='scrollable'>
<div class='long-content'>
This is supposed to scroll horizontally unless your window is super wide
</div>
</div>
<p>Some paragraph below the scrollable box</p>
</main>
</div>
One more option is to use width: 0; & flex-grow:1
.container {
display: flex;
margin: 20px;
height: 300px;
border: 1px solid blue;
}
.side-nav { flex-shrink: 0; width: 100px; min-height: 100%; background: grey; }
.main {
padding: 20px;
border: 5px dashed orange;
/* "new code" */
width: 0px;
flex-grow: 1;
}
.scrollable { overflow-x: auto; max-width: 100%; }
.long-content { width: 2000px; height: 50px; background: red; }
<div class='container'>
<aside class='side-nav'>
Aside
</aside>
<main class='main'>
<h1>Test</h1>
<div class='scrollable'>
<div class='long-content'>
This is supposed to scroll horizontally unless your window is super wide
</div>
</div>
<p>Some paragraph below the scrollable box</p>
</main>
</div>
I don't like any of those ideas - but this is life hh.

How to shrink the width of div when the elements are removed in resize div

Question: I am having two div's A & B where DIV A is having min and max width with resize horizontal feature and Div B is auto width.
Now when Div A has 4 divs in it when each div is removed the width of DIVA is auto shrinked but when i dragg div A to right and remove an element in DIV A the width is not auto
.resizeE {
border-right: 6px solid;
display: flex;
align-items: stretch;
justify-content: flex-start;
align-content: center;
width: auto;
min-width: 150px;
max-width: 250px;
height: 100%;
resize: horizontal;
overflow: auto;
}
.E1 .E2 .E3 .E4 {
border: 2px solid #A0A0A0;
width: 50px;
height: 50px;
}
.box {
width: 30px;
float: left;
margin: 5px;
}
.red {
color: red;
background: pink;
}
.blue {
color: blue;
background: light-blue;
}
.green {
color: green;
background: pink;
}
.map {
width: 100%;
}
<div style="height:100%;width:100%;background: #e2e2e2;overflow-y: hidden;overflow-x: hidden;">
<div class="resizeE">
<div class="red box">E1</div>
<div class="red box">E2</div>
<div class="blue box">E3</div>
<div class="green box">E4</div>
</div>
<div class="col p-5">
<div class="map">
block B
</div>
</div>
</div>

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