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Row submenu appears in wrong place after click [duplicate]

This question already has answers here:
Position absolute but relative to parent
(5 answers)
Closed 2 years ago.
I have static top bar and left menu, and scrollable long content on right. In my (long) submenu I use position: absolute to not change row height. Submenu position for rows 2 and 3 in below snippet is wrong and non-intuitive and unwanted scroll bar appear. How to fix it?
body { margin: 0}
button { height: 20px}
.hide { display:none; }
.container { display: flex; }
.topBar { background: red; height: 30px; }
.side__menu {
height: calc(100vh - 30px);
background: yellow;
display: flex;
flex-direction: column;
justify-content: space-between;
width:100px;
}
.main__panel {
overflow: auto;
height: calc(100vh - 30px);
width: calc(100vw - 100px);
}
.row {
display: flex;
justify-content: space-between;
align-items: center;
height: 200px;
background: #ddd;
margin: 10px;
}
.submenu {
position: absolute;
right: 100px;
background: #fdd;
height: 70px;
}
<div class="topBar">Top Bar</div>
<div class="container">
<div class="side__menu">
<div>item1</div><div>item2</div><div>menu footer</div>
</div>
<div class="main__panel">
<div class="row">
Row 1
<button onclick="s1.classList.toggle('hide')">toggle submenu</button>
<div id="s1" class="submenu hide">submenu</div>
</div>
<div class="row">
Row 2
<button onclick="s2.classList.toggle('hide')">toggle submenu</button>
<div id="s2" class="submenu hide">submenu</div>
</div>
<div class="row">
Row 3
<button onclick="s3.classList.toggle('hide')">toggle submenu</button>
<div id="s3" class="submenu hide">submenu</div>
</div>
</div>
</div>

I make some investigation and discover that height: 100vh (with calc or not) "create problems" with submenu. I accidentally find one solution - just add following style to row class
position: relative;
But I totally don't know why it actually works - so feel free to create answer and explain it if you know why (or show some alternative approach)
body { margin: 0}
button { height: 20px}
.hide { display:none; }
.container { display: flex; }
.topBar { background: red; height: 30px; }
.side__menu {
height: calc(100vh - 30px);
background: yellow;
display: flex;
flex-direction: column;
justify-content: space-between;
width:100px;
}
.main__panel {
overflow: auto;
height: calc(100vh - 30px);
width: calc(100vw - 100px);
}
.row {
display: flex;
justify-content: space-between;
align-items: center;
height: 200px;
background: #ddd;
margin: 10px;
position: relative;
}
.submenu {
position: absolute;
right: 100px;
background: #fdd;
height: 70px;
}
<div class="topBar">Top Bar</div>
<div class="container">
<div class="side__menu">
<div>item1</div><div>item2</div><div>menu footer</div>
</div>
<div class="main__panel">
<div class="row">
Row 1
<button onclick="s1.classList.toggle('hide')">toggle submenu</button>
<div id="s1" class="submenu hide">submenu</div>
</div>
<div class="row">
Row 2
<button onclick="s2.classList.toggle('hide')">toggle submenu</button>
<div id="s2" class="submenu hide">submenu</div>
</div>
<div class="row">
Row 3
<button onclick="s3.classList.toggle('hide')">toggle submenu</button>
<div id="s3" class="submenu hide">submenu</div>
</div>
</div>
</div>
Tested on: Chrome, Safari and Firefox

Align text in the center by ignoring the absolutely positioned element

I am developing a flex table from scratch and the table supports filtering and sorting. The icons for filters and sorting are displayed in the table header (right corner). Also my table supports that the user can position the header text left/center;
My problem:
Since the icons are inside the table header, icons as well occupies some space. So when i position the elements in the center, i see the alignment gets disturbed as shown below.
body {
width: 100%;
}
.table-header, .table-body {
display: flex;
width: fit-content;
border: 1px solid black;
padding: 10px;
}
.header, .data {
display: flex;
min-width: 150px;
width: 150px;
border-right: 1px solid black;
display: flex;
justify-content: center;
position: relative;
}
.header .text {
width: 100%;
white-space: nowrap;
text-align: center;
overflow: hidden;
text-overflow: ellipsis;
}
.icons {
float: right;
right: 0;
display: flex;
}
<div class="table">
<div class="table-header">
<div class="header">
<div class="text">Hlkjklkjlkjlkj lkjlkjlkjlkjlkjljlkjlkj</div>
<div class="icons">
<span> &#9760</span>
<span> &#9760</span>
</div>
</div>
<div class="header">9747
<div class="text">Header 2</div>
<div class="icons">
<span>b</span>
<span>b</span>
</div>
</div>
<div class="header">
<div class="text">Header 3</div>
<div class="icons">
<span>a</span>
<span>b</span>
</div>
</div>
<div class="header">
<div class="text">Header 4</div>
<div class="icons">
<span>a</span>
<span>b</span>
</div>
</div>
</div>
<div class="table-body">
<div class="data">123</div>
<div class="data">123</div>
<div class="data">123</div>
<div class="data">123</div>
</div>
<div class="table-body">
<div class="data">123</div>
<div class="data">123</div>
<div class="data">123</div>
<div class="data">123</div>
</div><div class="table-body">
<div class="data">123</div>
<div class="data">123</div>
<div class="data">123</div>
<div class="data">123</div>
</div>
</div>
Code: Here
What i tried
So since the icons as well take some space, to avoid this i positioned them absolutely relative to the header. So the alignment problem got solved . But for long headers where ellipsis has to be shown, the ellipsis hides behind the icons as shown below
Code: Here
So what is the solution to this ? I want to maintain the center position by reducing the space occupied by the icons. Is it possible through CSS? Please help. Thanks :)

If you try to do that with absolute positioning you need to know what exact width your icons can take.
Then possible solution is to add padding rule (left/right) into table headers, so CSS code should be like this:
body {
width: 100%;
}
.table-header, .table-body {
display: flex;
width: fit-content;
border: 1px solid black;
padding: 10px;
}
.header, .data {
box-sizing: border-box;
padding: 0 30px;
display: flex;
min-width: 150px;
width: 150px;
border-right: 1px solid black;
display: flex;
justify-content: center;
position: relative;
}
.header .text {
width: 100%;
white-space: nowrap;
text-align: center;
overflow: hidden;
text-overflow: ellipsis;
}
.icons {
position: absolute;
right: 0;
}

How to struct a Gantt Chart using flex divs using HTML and CSS

I'm structuring a Gantt Chart component using CSS and HTML.
The below image illustrate the necessary user viewing interactions:
The red boundaries is the current user view. The desired scrolling behaviour is as follows:
a) The tasks are must be scrolled vertically and horizontally as data can be out of viewable area.
b) When scrolling horizontally, the scale must be scrolled in sync (the scale will have date/time tags).
c) When scrolling horizontally, the left title boxes must remain fixed on the left, not scrolling together.
d) When scrolling vertically, the scale must remain fixed at the top.
e) When scrolling vertically, the titles boxes scrolls together with taks, keeping in sync view.
Here is what've tried so far with no success.
.container {
height: 100vh;
width: 100vw;
background-color: #cdcdcd;
}
.areas {
display: flex;
flex-direction: row;
justify-content: space-between;
height: 100%;
}
.leftarea {
display: flex;
flex-direction: column;
background-color: #ababab;
height: 100%;
margin-top: 30px;
}
.rightarea {
display: flex;
flex-direction: column;
height: 100%;
}
.titlecard {
display: flex;
justify-content: center;
align-items: center;
width: 50px;
min-height: 30px;
background-color: #435543;
color: white;
margin: 10px;
}
.scale {
display: flex;
color: white;
background-color: #433777;
}
.scaletick {
display: flex;
justify-content: center;
align-items: center;
height: 30px;
width: 80px;
color: white;
border: 1px solid white;
}
.tasks {
display: flex;
flex-direction: column;
background-color: #393984;
height: 100%;
}
.taskcard {
display: flex;
justify-content: center;
align-items: center;
background-color: #fefefe;
border-radius: 4px;
padding: 5px;
height: 50px;
width: 100px;
margin: 10px;
}
.taskcard1 {
width: 100px;
margin-left: 80px;
}
.taskcard2 {
width: 550px;
margin-left: 230px;
}
.taskcard3 {
width: 400px;
margin-left: 40px;
}
.taskcard4 {
width: 300px;
margin-left: 130px;
}
.taskcard5 {
width: 350px;
margin-left: 400px;
}
.taskcard6 {
width: 90px;
margin-left: 90px;
}
.taskcard7 {
width: 70px;
margin-left: 230px;
}
.taskcard8 {
width: 150px;
margin-left: 10px;
}
.taskcard9 {
width: 60px;
margin-left: 120px;
}
.taskcard10 {
width: 50px;
margin-left: 45px;
}
<div class="container">
<div class="areas">
<div class="leftarea">
<div class="titlecard">
Title 1
</div>
<div class="titlecard">
Title 2
</div>
<div class="titlecard">
Title 3
</div>
<div class="titlecard">
Title 4
</div>
<div class="titlecard">
Title 5
</div>
<div class="titlecard">
Title 6
</div>
<div class="titlecard">
Title 7
</div>
<div class="titlecard">
Title 8
</div>
<div class="titlecard">
Title 9
</div>
<div class="titlecard">
Title 10
</div>
</div>
<div class="rightarea">
<div class="scale">
<div class="scaletick">
01/01/2000
</div>
<div class="scaletick">
02/01/2000
</div>
<div class="scaletick">
03/01/2000
</div>
<div class="scaletick">
04/01/2000
</div>
<div class="scaletick">
05/01/2000
</div>
<div class="scaletick">
06/01/2000
</div>
<div class="scaletick">
07/01/2000
</div>
<div class="scaletick">
08/01/2000
</div>
<div class="scaletick">
09/01/2000
</div>
<div class="scaletick">
10/01/2000
</div>
</div>
<div class="tasks">
<div class="taskcard taskcard1">
Task 1
</div>
<div class="taskcard taskcard2">
Task 2
</div>
<div class="taskcard taskcard3">
Task 3
</div>
<div class="taskcard taskcard4">
Task 4
</div>
<div class="taskcard taskcard5">
Task 5
</div>
<div class="taskcard taskcard5">
Task 6
</div>
<div class="taskcard taskcard7">
Task 7
</div>
<div class="taskcard taskcard8">
Task 8
</div>
<div class="taskcard taskcard9">
Task 9
</div>
<div class="taskcard taskcard10">
Task 10
</div>
</div>
</div>
</div>
</div>
How can I get the necessary behaviour?

How can I create a simple 3x3 grid inside an article that keeps aspect ratio?

I want to make a 3x3 grid of squares in CSS/HTML that doesn't pass the height of the page and is responsive.
I've tried changing the width and height of the article to make it smaller percentage wise but it makes it too small when on mobile and too big when on desktop.
.square-container {
display: flex;
flex-wrap: wrap;
}
.square {
position: relative;
flex-basis: calc(33.333% - 10px);
margin: 5px;
border: 1px solid;
box-sizing: border-box;
background: tomato;
font-size: 9vw;
}
.square::before {
content: '';
display: block;
padding-top: 100%;
}
.square .content {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
.article1 {
border-style: solid;
border-width: 5px;
width: 100%;
height: 100%;
margin-left: auto;
margin-right: auto;
}
.h1 {
font-size: 3vw;
text-align: center;
}
<article class="article1">
<div>
<h1 class="h1">Text 1</h1>
</div>
<div class="square-container">
<div class="square">
<div class="content">0</div>
</div>
<div class="square">
<div class="content">1</div>
</div>
<div class="square">
<div class="content">2</div>
</div>
<div class="square">
<div class="content">3</div>
</div>
<div class="square">
<div class="content">4</div>
</div>
<div class="square">
<div class="content">5</div>
</div>
<div class="square">
<div class="content">6</div>
</div>
<div class="square">
<div class="content">7</div>
</div>
<div class="square">
<div class="content">8</div>
</div>
</div>
<div>
<h1 class="h1">Text 2</h1>
</div>
</article>
I want it to resize so that it's width and height are responsive and the height never exceeds the display (never have to scroll).

How to hide a flexbox element with smoth effect

I need to center divs and hide them on each click, the problem is when I use hide() and flexbox it makes a rude effect after dissapear, but if you just simply float elements to left it makes fine, how can I achieve this?
I need to apply exactly the same disappearing effect that is in the
first example to the second one (with flexbox).
Here is the example:
$(".example1, .example2").click(function(){
$(this).hide("slow")
});
.main{
border: 2px solid black;
height: 100%;
width: 100%;
}
.example1{
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
float: left;
}
.example2{
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
float: left;
text-align: center;
margin-left: 8px;
}
.second{
border: 2px solid black;
display: flex;
display: -webkit-flex;
flex-wrap: wrap;
-webkit-flex-wrap: wrap;
justify-content: center;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
With simple float left it hides slowly fine:
<div class="first">
<div class="example1">1</div>
<div class="example1">2</div>
<div class="example1">3</div>
<div class="example1">4</div>
<div class="example1">5</div>
<div class="example1">6</div>
<div class="example1">7</div>
<div class="example1">8</div>
<div class="example1">9</div>
<div class="example1">10</div>
<div class="example1">11</div>
<div class="example1">12</div>
<div class="example1">12</div>
<div class="example1">13</div>
<div>
<br><br><br><br><br><br><br><br><br><br><br><br><br>
Now flex center, when you hide it makes rude effect, it isnt like div.example1:
<div class="second">
<div class="example2">1</div>
<div class="example2">2</div>
<div class="example2">3</div>
<div class="example2">4</div>
<div class="example2">5</div>
<div class="example2">6</div>
<div class="example2">7</div>
<div class="example2">8</div>
<div class="example2">9</div>
<div class="example2">10</div>
<div class="example2">11</div>
<div class="example2">12</div>
<div class="example2">13</div>
<div class="example2">14</div>
</div>
</div>

Use flex-start for justify content instead of center. Now it has the same effect as with float. You can also use fadeOut instead of hide to achieve effect you want.
$(".example1, .example2").click(function(){
$(this).fadeOut("slow")
});
.main{
border: 2px solid black;
height: 100%;
width: 100%;
}
.example1{
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
float: left;
}
.example2{
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
display: flex;
justify-content: flex-start;
text-align: center;
margin-left: 8px;
}
.second{
border: 2px solid black;
display: flex;
display: -webkit-flex;
flex-wrap: wrap;
-webkit-flex-wrap: wrap;
justify-content: center;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
With simple float left it hides slowly fine:
<div class="first">
<div class="example1">1</div>
<div class="example1">2</div>
<div class="example1">3</div>
<div class="example1">4</div>
<div class="example1">5</div>
<div class="example1">6</div>
<div class="example1">7</div>
<div class="example1">8</div>
<div class="example1">9</div>
<div class="example1">10</div>
<div class="example1">11</div>
<div class="example1">12</div>
<div class="example1">12</div>
<div class="example1">13</div>
<div>
<br><br><br><br><br><br><br><br><br><br><br><br><br>
Now flex center, when you hide it makes rude effect, it isnt like div.example1:
<div class="second">
<div class="example2">1</div>
<div class="example2">2</div>
<div class="example2">3</div>
<div class="example2">4</div>
<div class="example2">5</div>
<div class="example2">6</div>
<div class="example2">7</div>
<div class="example2">8</div>
<div class="example2">9</div>
<div class="example2">10</div>
<div class="example2">11</div>
<div class="example2">12</div>
<div class="example2">13</div>
<div class="example2">14</div>
</div>
</div>

First, you can notice that this issue doesn't happen when you try to remove an item from the last row (excluding the first one in the last row). The issue appears when the first element of the row n suddenly go to the row n-1 because of 2 things :
You are trying to remove this first element so its width is going to 0 then for sure he will be able to fit into the previous row.
You are trying to remove any element so its width is going to 0 and you are creating enough space for the first element of next row to jump on it.
And this is simply due to center alignment as there is no difference if you do it with float, inline-block or flex. What is happening is that during the transition all the elements are moving to the center and when the new element comes (the first one of the next row) all the elements are re-placed again to keep the center alignement and then you have the rude effect !
With left alignment all the elements will move to the left during the transition and they won't move again at the end of transition (when the new element comes) so we don't have any rude effect.
Here is a snippet that shows inline-block and flex working fine with left alignment :
$(".example2, .example1").click(function() {
$(this).hide("slow");
});
.main {
border: 2px solid black;
height: 100%;
width: 100%;
}
.example1 {
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
text-align: center;
display:inline-block;
margin: 8px;
transition:margin 0.6s;
}
.example2 {
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
text-align: center;
float:left;
display:inline-block;
margin: 8px;
transition:margin 0.6s;
}
.first {
border: 2px solid black;
display: flex;
flex-wrap: wrap;
}
.second {
border: 2px solid black;
display: flex;
flex-wrap: wrap;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
inline-block
<div class="first">
<div class="example1">1</div>
<div class="example1">2</div>
<div class="example1">3</div>
<div class="example1">4</div>
<div class="example1">5</div>
<div class="example1">6</div>
<div class="example1">7</div>
<div class="example1">8</div>
<div class="example1">9</div>
<div class="example1">10</div>
<div class="example1">11</div>
<div class="example1">12</div>
<div class="example1">13</div>
<div class="example1">14</div>
<div class="example1">15</div>
<div class="example1">16</div>
<div class="example1">17</div>
<div class="example1">18</div>
<div class="example1">19</div>
</div>
flex solution
<div class="second">
<div class="example2">1</div>
<div class="example2">2</div>
<div class="example2">3</div>
<div class="example2">4</div>
<div class="example2">5</div>
<div class="example2">6</div>
<div class="example2">7</div>
<div class="example2">8</div>
<div class="example2">9</div>
<div class="example2">10</div>
<div class="example2">11</div>
<div class="example2">12</div>
<div class="example2">13</div>
<div class="example2">14</div>
<div class="example2">15</div>
<div class="example2">16</div>
<div class="example2">17</div>
<div class="example2">18</div>
<div class="example2">19</div>
</div>
</div>
Unfortunately, I don't have a solution to this if you want to only use the hide() of jQuery. Maybe some ideas of solution is to make a more complex code that will avoid the centered elements to move in two directions (you may for example change margin property at the same time to cancel the movement) or you can keep the left alignment and find some trick to simulate the centering (dynamically add some margin when window resize for example).
Hope this will help you to investigate more (even if I didn't really give a solution).

Well as pointed out already it would require some kind of "physics engine" moving the other blocks up smoothly etc.
But I made an attempt anyway which looks a bit more smooth at least.
$(".example1, .example2").click(function(){
var time = 600;
var $parent = $(this).parent();
$parent.animate({'width': '90%'}, time/2, function() {
$parent.animate({'width': '100%'}, time/2);
});
$(this).hide(time);
});
.main{
border: 2px solid black;
height: 100%;
width: 100%;
}
.example1{
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
float: left;
}
.example2{
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
float: left;
text-align: center;
margin-left: 8px;
}
.second{
display: flex;
display: -webkit-flex;
flex-wrap: wrap;
-webkit-flex-wrap: wrap;
justify-content: center;
overflow: hidden;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
<div class="second">
<div class="example2">1</div>
<div class="example2">2</div>
<div class="example2">3</div>
<div class="example2">4</div>
<div class="example2">5</div>
<div class="example2">6</div>
<div class="example2">7</div>
<div class="example2">8</div>
<div class="example2">9</div>
<div class="example2">10</div>
<div class="example2">11</div>
<div class="example2">12</div>
<div class="example2">13</div>
<div class="example2">14</div>
</div>
</div>

You can achieve the above without flex by making the children div's as inline-block with the parent being set with text-align:center, please take a look at this.
$(".example1, .example2").click(function(){
$(this).fadeOut("slow");
});
.main{
border: 2px dotted black;
height: 100%;
width: 100%;
}
.example1{
display: inline-block;
background-color: steelblue;
color: #FFF;
cursor: pointer;
margin: 10px;
padding: 15px 20px;
}
.first{
text-align: center;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js"></script>
<div class="main">
<div class="first">
<div class="example1">1</div>
<div class="example1">2</div>
<div class="example1">3</div>
<div class="example1">4</div>
<div class="example1">5</div>
<div class="example1">6</div>
<div class="example1">7</div>
<div class="example1">8</div>
<div class="example1">9</div>
<div class="example1">10</div>
<div class="example1">11</div>
<div class="example1">12</div>
<div class="example1">12</div>
<div class="example1">13</div>
</div>
</div>

My idea is: fade the whole parent container during reordering.
The effect will not so rude.
$(".second div").click(function() {
$(this).hide("slow");
var p = $(this).parent();
p.addClass("hidden");
setTimeout(function() {
p.removeClass("hidden")
}, 300);
});
p {
clear: both;
}
.second {
display: flex;
flex-wrap: wrap;
justify-content: center;
border: 2px solid black;
transition: 200ms;
}
.second div {
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
}
.hidden {
opacity: 0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="second">
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>5</div>
<div>6</div>
<div>7</div>
<div>8</div>
<div>9</div>
<div>10</div>
<div>11</div>
<div>12</div>
<div>13</div>
<div>14</div>
</div>

Instead of justify-content: center I changed it to justify-content: space-evenly (in your case, looks somewhat similar to center only) also updated the function from simply hiding to .animate and then .hide. Will it do?
$(".example1, .example2").click(function(){
var _this = this;
$(_this).animate({width: "0"}, 500, function(){ $(_this).hide(500) })
});
.main{
border: 2px solid black;
height: 100%;
width: 100%;
}
.example1{
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
float: left;
}
.example2{
background-color: grey;
width: 50px;
height: 50px;
margin: 10px;
float: left;
text-align: center;
margin-left: 8px;
overflow: hidden;
}
.second{
border: 2px solid black;
display: flex;
display: -webkit-flex;
flex-wrap: wrap;
-webkit-flex-wrap: wrap;
justify-content: space-evenly;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="main">
With simple float left it hides slowly fine:
<div class="first">
<div class="example1">1</div>
<div class="example1">2</div>
<div class="example1">3</div>
<div class="example1">4</div>
<div class="example1">5</div>
<div class="example1">6</div>
<div class="example1">7</div>
<div class="example1">8</div>
<div class="example1">9</div>
<div class="example1">10</div>
<div class="example1">11</div>
<div class="example1">12</div>
<div class="example1">12</div>
<div class="example1">13</div>
<div>
<br><br><br><br><br><br><br><br><br><br><br><br><br>
Now flex center, when you hide it makes rude effect, it isnt like div.example1:
<div class="second">
<div class="example2">1</div>
<div class="example2">2</div>
<div class="example2">3</div>
<div class="example2">4</div>
<div class="example2">5</div>
<div class="example2">6</div>
<div class="example2">7</div>
<div class="example2">8</div>
<div class="example2">9</div>
<div class="example2">10</div>
<div class="example2">11</div>
<div class="example2">12</div>
<div class="example2">13</div>
<div class="example2">14</div>
</div>
</div>