I'm trying to alter the style of something based on wether or not its parent div is being overflown.
.pDiv { display: block; width: 300px; height: 100px; border: 1px solid rgb(0,0,0); }
.cDiv { display: block; padding 4px; border-bottom: 1px solid rgb(0,0,0);
.pDiv:overflow .cDiv { border-bottom: none; }
<div class="pDiv"><div class="cDiv">child 1</div><div class="cDiv">child 2</div><div class="cDiv">child 3</div><div class="cDiv">child 4</div><div class="cDiv">child 5</div></div>
is it possible to do something like this? I would use the last-child pseudo-selector, but the number of children can vary, so I want it to remove the border-bottom of the last-child ONLY IF the parent div is being overflown. I want a pure CSS solution too please, no JS!
CSS cannot select based on used or computed styles of any kind, so you're out of luck.
It seems a handy solution for this is being cooked up: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Container_Queries
According to css-tricks, the feature "#container brings us the ability to style elements based on the size of their parent container."
You should already be able to use it, but beware that not every browser supports this yet.
This way, you might (read the note) be able to get out with something like:
.parent-div {
max-height: 10rem;
overflow-y: auto;
container: size;
}
#container (min-height: 10rem) {
.parent-div:last-child {
border-bottom: none;
}
}
The main idea here being that if the element reached it's maximum height, then it's all but always overflowing — so we just apply the style so long as it's at it's maximum height.
Unfortunately, my own browser does not support this yet, so I can't guarantee you it would work the exact way as it is written above. But if you refer to the 2 pieces of documentation I provided, you should be able to come out on top 🤓
Note:
The css-tricks page also mentions that "Currently, you cannot use height-based container queries, using only the block axis". I'm hoping this simply means using the full size axis is necessary in this case, but I'm not able to test this.
If someone could verify whether this solution works and then leave a comment here, that would be very much appreciated. I'd edit this answer and credit the person.
Related
I know it should not be possible, but maybe there's some new quirk... Take a look:
https://jsfiddle.net/1hnxzyux/4/
So I'm using display:table, table-cell and table-row.
I was previously able to get a row to zero height if it doesn't contain anything or if it contains a display:none element, but on the fiddle you can see I've tried to hide the first row/cell by setting height:0 and overflow:hidden on all the elements, including a .box inside the cell, and it really doesn't work.
Please especially test on Safari, because it has some more problems than Firefox and Chrome.
Any way to get rid of the height and hide contents?
EDIT 1: for now, I've found out that IF using a real html table and adding table-layout:fixed to it along with setting some width for it, as for the official specs (and some other posts here in SO) the overflow property does work.
Though, it seems it doesn't work/apply to, css-tables, and I need css-tables.
EDIT 2: Thanks to #zer00ne I updated the fiddle and found that it --would-- work by setting font-size:0 both to td and input field. Though, it's not what I'm currently looking for, since I have to animate the field position and must be fully functional itself. Anyway, these 2 edits can be helpful for other people.
After about one week of searching for a solution, the answer is:
no, it's still not possible. At least, it's not possible in a reliable and versatile way. It's only possible in ways that somewhat limit elements or future actions.
If one doesn't strictly need css-tables (like me in this specific case), you can successfully mimic the same behaviour in 2 ways:
use real tables, apply table-layout:fixed and a width to the table (doesn't matter the unit, can be percentage, for ex.). Than just height:0/oveflow:hidden as usual.
use flexbox. It's the css construct that, with the right rules applied, can better approximate the table behaviour.
Hope it helps
You shouldn't set height of a row. Just place div tag inside each td and put your content in div but not in td directly. The height of row will be equal to height of its content. Set height and overflow for div element and set 0 in top and bottom padding of td. And of course you can use transition for height of div.
$(function() {
$('button').on('click', toggleColumn);
});
function toggleColumn() {
$('div').toggleClass('rollup');
}
table {
border-collapse: collapse;
}
td {
padding-top: 0;
padding-bottom: 0;
border: 1px solid black;
}
div {
background-color: yellow;
height: 40px;
padding-top: 10px;
padding-bottom: 10px;
overflow: hidden;
transition: 2s all;
}
div.rollup {
height: 0;
padding-top: 0;
padding-bottom: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button>toggle</button>
<table>
<tr>
<td><div>Column 1</div></td>
<td><div>Column 2</div></td>
<td><div>Column 3</div></td>
<td><div>Column 4</div></td>
</tr>
</table>
If you are simply out after making the first row "invisible", you should simply be able to use CSS's :first-of-type like such:
/* Hide the first occurance of the 'tr' class */
.tr:first-of-type {
display: none;
}
Other than that, I'm not sure why you wouldn't be able to do something like this, alternatively? (a bit like the method you had attempted):
HTML
<div class="tr hidden">
<div class="td">
My Content
</div>
</div>
CSS
.hidden {
display: none;
}
Last but not least, may I ask why you are creating a "handmade" table using div's, instead of HTML's designated table?
You can animate opening a table row with HTML tables using this css:
tr.info td {
transition: all 0.5s ease;
}
tr.info.hide td {
line-height: 0;
padding-top: 0;
padding-bottom: 0;
overflow: hidden;
opacity: 0;
}
Remove the vertical padding which causes the apparent "minimum height" (thanks Andrey Shaforostov). Set opacity 0 to make the text appear as the row grows - smoother effect than using font-size. No need for inner div's - just add/remove the "hide" class on the table row.
Alright, of course I understand why this is happening, I'm just hoping there's some creative solution. Let's say I have this element:
.element {
padding:0 1px;
}
.element:hover {
font-weight:bold;
}
It's crucial that the padding be in place for visual consistency, but is there some magical way I'm not aware of to lock the element's width down before engaging in the hover behavior?
No JavaScript allowed, unfortunately.
JsFiddle:
http://jsfiddle.net/M9V3Q/
More Info
The client is extremely specific about what they want on certain parts of the site, and the nav is one of them, much to my frustration. They insist on hover being black text on a dark shade of red used in their logo, and they want the buttons to be centered. Since different browsers render text differently, the only way to create a consistent look is to use padding to create the width. Unfortunately, with normal font weight the black is very difficult to read.
You can use this approach:
#hoverEle {
width: 100px;
}
#hoverEle {
display:inline-block;
border:1px solid black;
padding:3px;
text-align: center;
}
#hoverEle:hover {
font-weight:bold;
}
Fiddle: http://jsfiddle.net/M9V3Q/4/
Cons is fixed width.
By the way, I think it is bad idea to focus buttons like this. More beautifull for user will be simple color change (e.g. #ccc) and, probably, transition effect. I think it is much more better.
Try this fiddle: http://jsfiddle.net/M9V3Q/9/
I think it is much more beautifull even in this variant :)
Try something like:
.element {
padding: 0 1px;
border: 2px solid transparent;
}
.element:hover {
font-weight: bold;
border: none;
}
A fiddle: http://jsfiddle.net/F4knz/
Could always try CSS3 box-sizing. It cuts into the elements width etc for padding, border..., and so prevents the element from expanding outside its set width.
Need to prefix -moz- or -webkit- for Firefox and safari.
I was wondering; is it possible to style the css3 resize property?
div {
resize: both;
overflow: auto;
}
I want a horizontal resize, and would like a vertical bar, rather than the little thingamagig in the corner in the default. See images. In short, can I make this:
Into something like this:
...and if this is not possible through css, any other ideas? I would like to keep things as lightweight as possible.
Obs: This answer is for WebKit only, couldn't find for other browsers nor testing with their - names worked.
Code:
Considering you have an element with the following CSS:
.styled {
resize:both;
overflow:auto;
background:orange; /* just for looks */
}
If you add webkit's specific pseudo-selector ::-webkit-resizer, you can style the handle:
::-webkit-resizer {
border: 2px solid yellow;
background: blue;
box-shadow: 0 0 2px 5px red;
outline: 2px dashed green;
/*size does not work*/
display:block;
width: 150px !important;
height: 150px !important;
}
Visual:
http://jsfiddle.net/RaphaelDDL/ryphs/1/
Final thoughts
I've tested with ::-moz-resizer on FF22, didn't worked. so yeah, you are stuck into making the javascript version, mimicking StackOverflow's textarea handle.
Extra info
When styling shadow dom pseudo selectors, do NOT stack them into a single selector ::-webkit-resizer, ::-moz-resizer { /*css*/} because will invalidate the entire selector.
Here is mapped all (or most of) Shadow DOM selectors: https://gist.github.com/afabbro/3759334
More info about Shadow Dom (HTML5Rocks) here and here.
Better looking and organized list of shadow dom selectors with screens
List of Mozilla's selectors (there is no pseudo-selector for resizer)
I would like to propose my solution
https://jsfiddle.net/tomoje/x96rL2sv/26/
It works on every browser, type of device, can be operated with mouse and finger (touch) and doesn't use any image etc.
The trick is to give to user a handle and to expand the handle to whole working area, to avoid mouse/touch to step out from the handle area during moving (it can happen when the javascript function will slow down due to some computer occupation or else)
<div class="cSuwakT" id="idSuwakKontenerGalka"></div>
I would like to vertically align the div ".person-user" so that is vertically in the center of the parent element ".person" (The text to be in the center of the photo but to the right) How can I do this?
Thanks
http://jsfiddle.net/mpBW5/5/
This is something that should be simple, but is actually a pain in the backside to do. Here's a quick jsFiddle, using display: table on the person div, and display: table-cell on the picture wrapper and info divs:
http://jsfiddle.net/2yfDs/1/
What follows is a combination of markup and style that will accomplish exactly what you want, without JavaScript and JQuery.
Markup:
<div class="person">
<img class="profile" src="http://sphotos-a.xx.fbcdn.net/hphotos-ash4/320450_10151028382307410_534533150_n.jpg"/>
<div class="profile">
<div class="name">Colin Pacelli</div>
<div class="fact">Ohio University</div>
</div>
</div>
Style:
.person {
display: table;
}
.person img.profile{
height: 50px;
margin-right: 10px;
/*border-radius: 4px 4px 4px 4px;*/
}
.person div.profile {
display: table-cell;
vertical-align: middle;
/*font-family: calibri;
font-size: 14px;
color: #444;*/
}
/*.person .profile .name {
font-weight: bold;
}*/
I have commented out the rules that do not principally affect the solution, so that all can see how little it takes with CSS if done right. Compared to 10 lines of code running using 32Kb of client side code running on top of a virtual machine. And you thought Adobe Flash Player was evil. I do not mind JQuery much, especially for things it can do well, but frankly, involving JQuery in a clear cut case of pure style is a just bit too much.
As you probably can figure, I have edited your JSFiddle, stripping it of non-essentials and cutting it down to a minimal example that exhibits the desired behavior while leaving the visuals in place.
Since you specified html and css as tags, and since it is in nearly all cases a better idea not to resort to JavaScript/JQuery when they can be avoided, I would really use a markup and style solution like the above instead.
The most precise way is to do this with jQuery and calculate it dynamically for each div. This is useful if some/all image/text divs have different heights. The example. The code:
$("div.person-user").each(function() {
$(this).css("marginTop", function() {
var imgH = $(this).prev("div.person-user-pic").height(),
thisH = $(this).height(),
h = (imgH/2) - (thisH/2);
return h;
});
});
BUT: if every div and image has the same height, you could just do this:
div.person-user {margin-top: 8px;}
I hope that this answers your question?
This is a very common question and the best explanation so far is here:
http://phrogz.net/css/vertical-align/index.html
Take this code:
#wh_wrapper #slider .scrollButtons.left {
width: 100px;
}
the width of 100px is being applied only to:
#wh_wrapper -> #slider -> scollButtons left
If I do this:
.left {
width: 50px;
}
all the
.left
classes has now a width of 50px, including the one from before.
Now, I completely understand how to avoid this error (setting specific classes, putting .left before #wh_wrapper #slider .scrollButtons.left etc..) what I'm asking is if there is a way to specify properties that cannot be overwritten by "global" properties.
I hope I was able to explain myself.
Thanks
EDIT:
I now understand !important :-)
But look at this other example:
#wh_wrapper #slider .scrollButtons.left {
width: 100px !important;
}
.left {
width: 50px;
}
Now #wh_wrapper #slider .scrollButtons.left will still be 100px, but what about:
.left {
width: 50px;
border: 1px solid #000;
}
since I haven't decalred a border before I can't put an important on it, still the #wh_wrapper #slider .scrollButtons.left will now have a border property.
Any way areound this?
Yes, put !important behind them:
.class{
height:100px !important;
width: ...etc
}
Watch out though: Internet Explorer 6 and previous versions simply ignore !important, while IE 7 supports them. More info on this can be found here or here.
!important is something to consider, butyou should try to avoid it. Most of the times it can be avoided by building a better html/css tree or adding a class (try to keep them generic though ;)).
#EDIT: You should always put the most generic selectors on top, and the build down to the more specific ones. for example: put a img{} selector on top to provide a global specifier for all your images, then you go down more and more specific.
wrapper img{}
wrapper container img{}
wrapper container div.something img{}
and so on. Don't try to overdo the classes and ID's, the more generic your html/css is the better. containers and wrappers are often overused and unnescessary. Try to write good semantic html and keep html and css seperated. Don't use css when you should us HTML (and vice versa)
Often it is better to create your whole html file, and when everything looks good, provide css for the finishing touch.
Tried !important?
I tested your code in Opera, Chrome, FF and IE and all prefer the first line over the second one, no matter what the order of the rules is. In the sample you pasted there's a space missing in ".scrollButtons.left" - if I use that code then it (of course) always matches the second rule. Are you sure this isn't the problem?