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How to align boxes right under each other with flexbox

The point is that I want to implement this layout with html, css and js.
When you click on the button, the container should alternately become taller/smaller.
picture 1
picture 2
However, no fixed height should be passed, as is currently implemented.
Without using max-height, scaleY.
Also, text5 should be right under text2 and text6 right under text3 (as you can see in the picture) without using width or something similar.
The flex items should only be as large as the content.
I've also searched for solutions, but the search results weren't what I was looking for.
How can I transition height: 0; to height: auto; using CSS?
Flexbox not giving equal width to elements
Align divs under each other
let isOpen = false;
function toggleHeight() {
let row2 = document.getElementById('row2');
if(!isOpen){
isOpen= !isOpen;
row2.style.height = '120px';
//row2.style.height = 'auto';
}
else{
isOpen= !isOpen;
row2.style.height = '0';
}
}
.row1, .row2 {
display: flex;
gap: 10px;
background-color: #ccc;
}
.row2 {
height: 0;
transition: 0.25s ease;
overflow: hidden;
}
.col1 {
display:flex;
}
<div onclick="toggleHeight()">Click Me</div>
<div class="row1">
<div class="col1">
<div>
<div>text</div>
<div>text</div>
</div>
<div>
<div>text</div>
<div>text</div>
</div>
<div>
<div>text</div>
<div>text</div>
</div>
</div>
<div class="col2">
<div>text2</div>
<div>text2</div>
</div>
<div class="col2">
<div>text3</div>
<div>text3</div>
</div>
</div>
<div id="row2" class="row2">
<div class="col1">
<div>text4</div>
<div>text4</div>
</div>
<div class="col2">
<div>text5</div>
<div>text5</div>
</div>
<div class="col2">
<div>text6</div>
<div>text6</div>
</div>
</div>

I created exactly you wanted but the transition on height is not working!
const button = document.querySelector('button')
const row2 = document.querySelector('#row-2')
button.addEventListener('click', () => {
row2.classList.toggle('visible')
})
#import "https://cdn.jsdelivr.net/gh/KunalTanwar/normalize/css/normalize.inter.min.css";
body {
height: 100%;
display: grid;
place-items: center;
}
button {
padding: 4px;
border: 1px solid #c1c1c1;
}
.flex {
margin-top: 32px;
display: flex;
flex-direction: column;
}
.flex .row {
display: inherit;
column-gap: 16px;
}
.flex .row .col {
display: inherit;
padding-inline: 16px;
flex-direction: column;
}
.flex .row#row-2 {
height: 0px;
overflow: hidden;
background-color: red;
transition: height 250ms ease, overflow 250ms ease;
}
.flex .row#row-2.visible {
height: auto;
overflow: visible;
}
<div>
<button>Click Me!</button>
<div class="flex">
<div class="row" id="row-1">
<div class="col">
<span>texttexttext</span>
<span>texttexttext</span>
</div>
<div class="col">
<span>text2</span>
<span>text2</span>
</div>
<div class="col">
<span>text3</span>
<span>text3</span>
</div>
</div>
<div class="row" id="row-2">
<div class="col" style="align-self: center;">texttexttext</div>
<div class="col">
<span>text5</span>
<span>text5</span>
</div>
<div class="col">
<span>text6</span>
<span>text6</span>
</div>
</div>
</div>
</div>
P.S - remove padding-inline from .col.

dropdown menu is covered

i have problem like this
dropdown-menu covered
btw it isn't covered by other div, but dropdown-menu can't be out of the navbar, if i can ilustrate this it can be like this
ilustration of the navbar and dropdown-men
i make the navbar native with this code
<div id="topnav" class="topnav close-sidebar">
<div class="col d-inline">
<a href="#" onclick="sidebarToggle()">
<i class="fa-solid fa-bars"></i>
</a>
<p class="mt-1" style="text-align: left; font: normal normal normal 14px/17px Helvetica; letter-spacing: 0.34px;"><%: DateTime.Now.ToString("dddd, dd MMMM yyyy") %></p>
</div>
<div class="form-inline mr-5" style="max-width: 350px;">
<div class="d-inline">
<img class="mb-3" src="<%=Page.ResolveClientUrl("~/Assets/img/Worklist/atom-button-header-a-button-header-icon.svg")%>" alt="Alternate Text" />
</div>
<div class="d-inline mb-3">
<img style="height: 24px;" class="" src="<%=Page.ResolveClientUrl("~/Assets/img/Worklist/atom-icon-a-icon-globe.svg")%>" alt="Alternate Text" />
</div>
<div class="d-inline mb-3">
<div id="en" class="">EN</div>
</div>
<div class="d-inline" style="max-width: 250px;">
<div id="profile" class="text-right mb-3 ml-4" style="max-width: 250px; width: 150px;">
<div class="dropdown">
<div style="cursor: pointer;" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<div class="d-inline">
<img style="height: 32px; width: 32px;" src="<%= Page.ResolveClientUrl("~/Assets/img/Worklist/img_avatar.png") %>" class="img-fluid mr-2 rounded-circle" alt="Responsive image" />
</div>
<div class="d-inline">
Nama User
</div>
<div class="d-inline">
<img src="<%= Page.ResolveClientUrl("~/Assets/img/Worklist/atom-icon-a-icon-angle-down.svg") %>" alt="Text" />
</div>
</div>
<div class="dropdown-menu" aria-labelledby="dropdownMenuButton" style="opacity: 1 !important; z-index: 99;">
<a class="dropdown-item" href="#">Logout</a>
</div>
</div>
</div>
</div>
</div>
</div>
and the css of is like this
.topnav {
top: 0;
overflow: hidden;
height: 56px;
background: #1D2567 0% 0% no-repeat padding-box;
opacity: 1;
display: flex;
}
.close-sidebar {
margin-left: 56px;
}
for the dropdown-menu i used boostrap 4.3.1
when i inspect the web, the css is like this
css inspect 1
css inspect 2
css inspect 3
css inspect 4
Update:
i try to see my z-index using 3d view in ms edge, and the dropdown-menu is already in front of the navbar, but on the website it is covered
3D View

set position relative to parent or container and set position absolute to child elements. try to change overflow
.topnav {
top: 0;
overflow: hidden; // try to change this not hidden
height: 56px;
background: #1D2567 0% 0% no-repeat padding-box;
opacity: 1;
display: flex;
position: relative; // parent}
.close-sidebar {
margin-left: 56px;
position: absolute; // child};
if dont work let us to know and type more describe. thank you

You can try
.topnav {
top: 0;
overflow: hidden;
height: 56px;
background: #1D2567 0% 0% no-repeat padding-box;
opacity: 1;
display: flex;
position: relative;
}
.close-sidebar {
margin-left: 56px;
position: absolute;
z-index: 10;
}
This should work. Let us know if this doesn't

Try using this
.topnav {
top: 0;
overflow: hidden;
height: 56px;
background: #1D2567 0% 0% no-repeat padding-box;
opacity: 1;
display: flex;
z-index: 999;
}
.close-sidebar {
margin-left: 56px;
}

How to push all lower elements down when expanding a div?

I have a video iframe that expands when clicking a button. This is contained inside of a header for the page which has 100vh height (full screen). When the video expands, it pushes the rest of the content in the header up in order to have everything vertically centred within the header. Instead, I would like to increase the height of the header div beyond 100vh to 100vh plus the video height. However, the code I have so far isn't working.
LINK TO PAGE
$(document).ready(function(){
$(".video" ).click(function() {
$(".header").height("+=315");
document.getElementById("video__player").style.maxHeight = "50vw";
document.getElementById("video-btn").style.display = "none";
});
});
.header {height: 100vh; width: 100vw;}
.header__content {height: calc(100vh); width: 100%; display: flex; display: -webkit-flex;}
.header__content--container {margin: auto; display: flex; display: -webkit-flex; flex-direction: column; -webkit-flex-direction: column;}
.video__container {text-align: center;}
.video {color: gray; width: 100%; height: auto;}
.play-btn {width: 20px; height: 20px; vertical-align: middle;}
.video__player {overflow: hidden; width: 300px; max-height: 0px; transition: max-height 0.5s ease-in-out; -webkit-transition: max-height 0.5s ease-in-out; margin: auto;}
<div class="header" id="header">
<div class="header__menu">
<div class="header__menu--left">
<div class="logo">
<img class="logo__full img__full" src="assets/kbd-logo-english.svg">
<img class="logo__mobile img__full" src="assets/kbd-logo-mobile.svg">
</div>
</div>
<div class="header__menu--right">
<div class="phone">
<h9 class="strong" style="color: #5CBDE1;">1-855-636-0002</h9>
</div>
<a class="quote menu__quote clickable" href="https://pt.atrium-uw.com/Quote?Id=81" style="margin: 0;">
<h8 class="strong" style="margin: auto;">Get your quote</h6>
</a>
<div class="language">
<h9 class="clickable strong" style="color: #5CBDE1;">FR</h9>
</div>
</div>
</div>
<div class="header__content">
<div class="header__content--container animatedParent animateOnce">
<h1>Hi, we're KBD Insurance.</h1>
<br>
<h2 class="text__center">Life is chaotic. Insurance doesn't have to be.</h2>
<br><br>
<div class="quote__wrapper header__quote--wrapper">
<a class="quote menu__quote clickable animated fadeInDownShort slow" href="https://pt.atrium-uw.com/Quote?Id=81" style="margin: 0; height: 60px;">
<h8 class="strong" style="margin: auto;">Get your quote</h6>
</a>
</div>
<br><br>
<div class="video__container animated fadeInDownShort slow">
<a class="h6 video clickable" id="video-btn">Watch the video <img class="play-btn" src="assets/kbd-icon-play.svg"></a>
</div>
<div class="video__player" id="video__player">
<iframe src="https://www.youtube.com/embed/SIaFtAKnqBU" frameborder="0" allowfullscreen></iframe>
</div>
</div>
</div>
</div>

The margin of .header__content--container is currently set to auto. Change the margin to some hard-coded value like, for example, 300px, and it works like you want it to.
EDIT: the requested function
function setMarginTop() {
const $header = $(".header__content--container");
const marginTop = $header.css("margin-top");
$header.css("margin-top", marginTop);
}

iPad and iPhone not scrolling to anchored div

I have tried to get both an iPad and iPhone to work with my current pen and it seems that I can't get it. I have tried to use and SomeContent as well as the normal . The will simply not scroll down to the div. I've tried to cut out the javascript, bootstrap, css, and even cut the page down to rudementary html for awhile but none of the tests seemed to fix it.
Included in the file are Bootstrap.js, Jquery.min.js, Bootstrap.min.css, and font-awesome.min.css
You can find the pen here: Gregory Buhler Portfolio
HTML:
<body>
<nav class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="container">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#main-nav">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand topnav" href="http://GregoryBuhler.com" target="_blank">Gregory Buhler</a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="main-nav">
<ul class="nav navbar-nav navbar-right">
<li>
Home
</li>
<li>
About
</li>
<li>
Portfolio
</li>
<li>
Contact
</li>
</ul>
</div>
<!-- /.navbar-collapse -->
</div>
<!-- /.container -->
</nav>
<div id="home" class="text-center">
<div class="container">
<div class="row">
<div class="col-lg-12">
<div class="homecontent">
<h1>Gregory Buhler Website Design</h1>
<h3>Always on the fantastic side of life</h3>
</div>
<!-- End .homecontent -->
</div>
<!-- End .col-lg-12 -->
</div>
<!-- End .row -->
</div>
<!-- End .container -->
</div>
<!-- End #home -->
<div id="about">
<div class="container">
<div class="row">
<div class="col-sm-12 col-md-4 col-md-offset-2 text-background">
<h4>A Bit About Me</h4>
<p>When I was a kid my dad pushed for my brother and I to learn computers. I took to it like a fish to water. From 8 onwards my summers were spent indoors working away on simple scripting languages and later on some game modifications.</p>
<p>I won't lie, it wasn't easy getting past my <em>"it needs to be perfect all the time"</em> streak. In fact I still have that streak, I've just learned to fix and perfect as you go instead of making it perfect on the first go-round.</p>
<p>I absolutely love a challenge, critisism of my work used to cause me to clam up a bit. Over time I learned to take the constructive side of critisism and use it to better myself and the content I produce.</p>
<p>None of this would be possible without my amazing wife who puts up with my nose being buried in a book or in code for hours at a time every day. I want to provide the best life I can for her, and I'm good at tech and I love tech, this
is how I plan to provide for her the rest of our lives.</p>
</div>
<!-- End .com-sm-12 .col-md-4 .com-md-offset-2 .text-background -->
<div class="col-md-4 col-md-offset-1 text-center">
<img class="img-circle vertical-align" src="http://i66.tinypic.com/2ywz3w5.jpg" alt="Gregory Buhler in his black cowboy hat.">
</div>
<!-- end .col-md-4 .col-md-offset-1 .text-center -->
</div>
<!-- End .row -->
</div>
<!-- End .container -->
</div>
<!-- End #about -->
<div id="portfolio">
<div class="portfoliocontent text-center">
<div class="container">
<h1>Portfolio</h1>
<div class="row">
<div class="col-sm-4 col-md-3">
<div class="imgholder">
<div class="img-rounded inset-shadow">
<img class="img-rounded" src="https://placeholdit.imgix.net/~text?txtsize=33&txt=200×150&w=200&h=150">
</div>
<figcaption class="figure-caption">Placeholder</figcaption>
</div>
</div>
<div class="col-sm-4 col-md-3">
<div class="imgholder">
<div class="img-rounded inset-shadow">
<img class="img-rounded" src="https://placeholdit.imgix.net/~text?txtsize=33&txt=200×150&w=200&h=150">
</div>
<figcaption class="figure-caption">Placeholder</figcaption>
</div>
</div>
<div class="col-sm-4 col-md-3">
<div class="imgholder">
<div class="img-rounded inset-shadow">
<img class="img-rounded" src="https://placeholdit.imgix.net/~text?txtsize=33&txt=200×150&w=200&h=150">
</div>
<figcaption class="figure-caption">Placeholder</figcaption>
</div>
</div>
<div class="col-sm-4 col-md-3">
<div class="imgholder">
<div class="img-rounded inset-shadow">
<img class="img-rounded" src="https://placeholdit.imgix.net/~text?txtsize=33&txt=200×150&w=200&h=150">
</div>
<figcaption class="figure-caption">Placeholder</figcaption>
</div>
</div>
<div class="col-sm-4 col-md-3">
<div class="imgholder">
<div class="img-rounded inset-shadow">
<img class="img-rounded" src="https://placeholdit.imgix.net/~text?txtsize=33&txt=200×150&w=200&h=150">
</div>
<figcaption class="figure-caption">Placeholder</figcaption>
</div>
</div>
<div class="col-sm-4 col-md-3">
<div class="imgholder">
<div class="img-rounded inset-shadow">
<img class="img-rounded" src="https://placeholdit.imgix.net/~text?txtsize=33&txt=200×150&w=200&h=150">
</div>
<figcaption class="figure-caption">Placeholder</figcaption>
</div>
</div>
<div class="col-sm-4 col-md-3">
<div class="imgholder">
<div class="img-rounded inset-shadow">
<img class="img-rounded" src="https://placeholdit.imgix.net/~text?txtsize=33&txt=200×150&w=200&h=150">
</div>
<figcaption class="figure-caption">Placeholder</figcaption>
</div>
</div>
<div class="col-sm-4 col-md-3">
<div class="imgholder">
<div class="img-rounded inset-shadow">
<img class="img-rounded" src="https://placeholdit.imgix.net/~text?txtsize=33&txt=200×150&w=200&h=150">
</div>
<figcaption class="figure-caption">Placeholder</figcaption>
</div>
</div>
</div>
</div>
</div>
</div>
<div id="contact">
<div class="container">
<div class="row">
<div class="contactcontent text-center">
<div class="col-md-12">
<h1>Get ahold of me</h1>
<h3>Open Your Eyes to the Opportunities</h3>
</div>
<hr class="hor-big">
<div class="col-sm-12 col-md-2 col-md-offset-2">
<a href="https://www.facebook.com/GBProgramming" target="_blank" class="btn-inverse"><i class="fa fa-facebook"></i> Facebook
</a>
</div>
<div class="col-sm-12 col-md-2">
<a href="https://twitter.com/gregoryBuhler" target="_blank" class="btn-inverse"><i class="fa fa-twitter"></i> Twitter
</a>
</div>
<div class="col-sm-12 col-md-2">
<a href="https://github.com/Gregory-Buhler" target="_blank" class="btn-inverse"><i class="fa fa-github"></i> Github
</a>
</div>
<div class="col-sm-12 col-md-2">
<a href="https://www.linkedin.com/in/gregorybuhler" target="_blank" class="btn-inverse"><i class="fa fa-linkedin"></i> Linkedin
</a>
</div>
</div>
</div>
</div>
</div>
<footer>
<div class="container text-center">
<p>© Website created by Gregory Buhler</p>
</div>
</footer>
</body>
CSS:
#about {
background: url(http://i63.tinypic.com/213ht14.jpg) 50% 0 no-repeat fixed;
background-size: cover;
padding-top: 10%;
padding-bottom: 10%;
font-size: 1.1em;
}
#about .text-background {
background: rgba(255, 255, 255, .3);
font-family: droid-serif;
color: rgb(30, 30, 30);
padding: 10px;
border-radius: 10px;
}
#about img {
padding: 20px;
}
#about,
#contact,
#home,
#portfolio {
overflow: hidden;
min-height: 900px;
}
a.btn-inverse {
position: relative;
display: inline-block;
margin-top: 10px;
width: auto;
transition: all .2s ease-in-out;
background-color: rgb(90, 90, 90);
border: rgb(60, 60, 60) 1px solid;
padding: 10px 15px;
border-radius: 5px;
color: white;
}
a.btn-inverse:hover {
background-color: rgb(0, 0, 0);
transform: scale(1.1);
text-decoration: none;
}
body {
padding-top: 50px;
}
#contact {
background: url(http://i63.tinypic.com/2rp9tau.jpg) 50% 0 no-repeat fixed;
background-size: cover;
}
.contactcontent {
padding-top: 25%;
padding-bottom: 25%;
}
footer {
padding-top: 10px;
}
h1,
h2,
h3 {
font-family: Cinzel;
text-shadow: 1px 1px 1px #000;
}
h1 {
font-size: 4em;
color: rgb(100, 100, 100);
}
h2 {
font-size: 3em;
}
h3 {
font-size: 2em;
color: rgb(150, 150, 150)
}
h4 {
font-size: 1.7em;
font-weight: 700;
}
#home {
background: url(http://i65.tinypic.com/vht1c2.jpg) 50% 0 no-repeat fixed;
background-size: cover;
}
.homecontent {
padding-top: 25%;
padding-bottom: 20%;
}
.hor-big {
clear: both;
border: 0;
height: 0;
box-shadow: 0 0 10px 1px black;
}
.hor-big:after {
content: "\00a0";
}
.imgholder {
margin: auto;
border-radius: 5px;
border: rgb(20, 20, 20) 1px solid;
background-color: rgb(250, 250, 250);
width: 190px;
height: 180px;
padding-top: 5px;
padding-left: 5px;
}
.imgholder img {
float: left;
}
.inset-shadow {
position: relative;
float: left;
}
.inset-shadow:before {
content: "";
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
box-shadow: inset 0 0 8px rgba(0, 0, 0, .6);
-moz-box-shadow: inset 0 0 8px rgba(0, 0, 0, .6);
-webkit-box-shadow: inset 0 0 8px rgba(0, 0, 0, .6);
}
#my-row {
display: table;
}
#my-row .content {
float: none;
display: table-cell;
vertical-align: middle;
}
.navbar {
margin-bottom: 0;
position: fixed;
}
.nav li:hover {
background-color: rgb(28, 28, 28);
}
#portfolio {
background: url(http://i67.tinypic.com/287nl8z.jpg) 50% 0 repeat fixed;
background-size: cover;
}
.portfoliocontent {
padding-top: 10%;
padding-bottom: 10%;
}
.portfoliocontent .row > div {
transform: all .4s ease-in-out;
margin-top: 10px;
}
JS:
$("nav ul li a[href^='#']").on('click', function(e) {
e.preventDefault();
// animate the scroll
y = $(this.hash).offset().top - 50;
if ((y - window.pageYOffset) > 0) {
time = y - window.pageYOffset;
} else {
time = window.pageYOffset - y;
}
$('html, body').animate({
scrollTop: y
}, time);
});
Any help would be greatly appreciated! Thank you!

Trying to get equal height columns with expanding text whilst using overflow with CSS transitions

Ok, I have this code I have done up here on how I need this solution to function:
Codepen: http://codepen.io/anon/pen/MaOrGr?editors=110
HTML:
<div class="container">
<div class="wrapper row">
<div class="box col-sm-4">
<div class="cta-background">
</div>
<div class="rollover-wrap">
<div class="details">
some text
</div>
<div class="summary">
fhdhjofsdhohfsohfsouhofuhufhoufdsh
fskjoifhspofhdsohfdsohfohfsd
fsdujhofhofdshofhohfds
fdsolhfsdohfodshfohfdsohfosd
fsdljhfdsouhfdsohhfso
</div>
</div>
</div>
<div class="box col-sm-4">
<div class="cta-background">
</div>
<div class="rollover-wrap">
<div class="details">
some text
</div>
<div class="summary">
fhdhjofsdhohfsohfsouhofuhufhoufdsh
fskjoifhspofhdsohfdsohfohfsd
fsdujhofhofdshofhohfds
fdsolhfsdohfodshfohfdsohfosd
fsdljhfdsouhfdsohhfso
</div>
</div>
</div>
<div class="box col-sm-4">
<div class="cta-background">
</div>
<div class="rollover-wrap">
<div class="details">
some text
</div>
<div class="summary">
fhdhjofsdhohfsohfsouhofuhufhoufdsh
fskjoifhspofhdsohfdsohfohfsd
fsdujhofhofdshofhohfds
fdsolhfsdohfodshfohfdsohfosd
fsdljhfdsouhfdsohhfso
</div>
</div>
</div>
</div>
</div>
SCSS / CSS:
.wrapper {
.box {
position: relative;
height: 340px;
overflow: hidden;
margin-top: 10px;
&:hover > .rollover-wrap {
bottom: 260px;
}
.cta-background {
background-image: url('http://ideas.homelife.com.au/media/images/8/2/8/9/0/828947-1_ll.jpg');
background-size: cover;
height: 260px;
}
.rollover-wrap {
position: relative;
bottom: 0;
transition: 0.3s;
z-index: 2;
}
.details {
font-size: 24px;
font-weight: bold;
padding: 20px;
background-color: gray;
height: 80px;
}
.summary {
height: 260px;
font-size: 15px;
padding: 15px;
background-color: #E29222;
z-index: 2;
}
}
}
This is working fine and is the effect I am wanting; however, I need to support the gray area being able to have multiple lines of text, and if one does, then the other adjacent gray sections should expand to the same height.
At the moment it uses fixed heights to assist with hiding and bringing in the transition on hover, but this hinders the ability for the gray area to expand. Even if it could expand, the other boxes need to match the height.
I have tried using flexbox and changing the html layout to no avail.
I don't mind if the image & summary sections have a fixed height, but the gray area needs to be able to expand to it's content.
Is there anyway to do what I want to do without JavaScript? If not, is there a clean way to do it with JavaScript/jQuery that doesn't have too much of a messy fallback?