Develop Reference

Set text on the same y-aligment line

I've been stuck on this problem for hours.
This is my Header.js
<div className="navbar-inner">
<h2>Text1</h2>
<h3>Text2</h3>
</div>
This is my Header.css file:
.navbar-inner {
margin: 0 auto;
color: #fff;
display: flex;
width: 87vw;
background-color: red;
justify-content: space-between;
vertical-align: sub;
}
This is what is shown:
I would like Text1 and Text2 to be aligned on the same y-line:

You can give flex on h2 and h3 tag.
h2, h3 {
display: flex;
align-items: center;
}

align-items is what you need for vertically aligning text when using flex box.
I also removed the margin from the h2 and h3 elements (it is there by default).
.navbar-inner {
margin: 0 auto;
color: #fff;
display: flex;
width: 87vw;
background-color: red;
justify-content: space-between;
/* New styles */
align-items: flex-end;
padding: 5px;
}
h2, h3 {
margin: 0;
}
You will probably need to adjust the padding to align it how you actually want it in terms of how close the text should be to the edges.

How can I turn my navbar into Hamburger menu for mobile using responsive design?

How could I turn this navbar I made using CSS into Hamburger menu for mobile ? It needs to be responsive. I first tried using bootstrap but I'd like it to use CSS
Here's my codepen : https://codepen.io/Softee/pen/WNZpXGa
Thanks in advance for your help!
Here's the code :
header {
background: #583760;
}
header::after {
content: '';
display: table;
clear: both;
}
.logo {
max-height: 90px;
margin-left: 60px;
float: left;
padding: 10px;
}
nav {
margin-right: 60px;
float: right;
}
nav ul {
margin: 0;
padding: 0;
list-style: none;
}
nav li {
display: inline-block;
margin-left: 40px;
padding-top: 50px;
}
nav a {
color: white;
font-weight: bold;
text-decoration: none;
text-transform: uppercase;
}
nav a:hover {
color: black;
}
#nav:not(:target) {
right: -100%;
transition: right 1.5s;
}
#nav:target {
right: 0;
transition: right 1s;
}
<header>
<div class="container">
<img src="images/GameStar-Blanc.png" alt="logo" class="logo">
<nav>
<ul>
<li>A LA UNE </li>
<li>L'ACTUALITE</li>
<li>GUIDES ET ASTUCES</li>
<li>PROCHAINEMENT</li>
</ul>
</nav>
</header>

First of all, you will have to refactor the global CSS by using flex and grid which are the standard for responsive design. It is way more simple and powerful than using floats and other ancient stuff:
<header class="header">
<img src="..." />
<nav> ... </nav>
</header>
.header {
display: flex;
width: 100%;
justify-content: space-between;
align-items: center;
padding: 20px 60px;
}
With justify-content: space-between you tell the container that the elements inside of it (.logo and nav) will be spaced, the first (logo) at the left and the second (nav) at the right, no need to use float. The property works only if you set display: flex. With align-items: center; you tell the flex container how you want to vertically align your items.
Then, you can assign a class to ul and populate it as follows:
.list {
display: grid;
grid-auto-flow: column;
list-style-type: none;
column-gap: 20px;
padding: 0;
}
Here you're telling to <ul> element that all the <li> elements inside of it, should compose a grid of n columns as many <li> elements and that you want 20px of space between each of them. The property column-gap works only if you set display: grid. The padding should always be 0 or the browser will add some padding by default. You don't want it so you specify 0.
Now, you can use a powerful combo to set the width of the list items by creating a class and assigning it to your <li> elements:
.listItem {
width: min-content;
white-space: nowrap;
}
Here you're just telling to the list items that their width should be automatic, based on the words length. With white-space: nowrap you're telling to the list items that you never want the text to start a new line after a space. For example, "GUIDES ET ASTUCES" will always be placed on a single line. At the same time you're also setting the width for each column of the grid created before.
Now, create a button and wrap it together with the logo in a new div:
<div class="mobileHeader">
<img src="images/GameStar-Blanc.png" alt="logo" class="logo">
<button class="hamburger">Menu</button>
</div>
Basically, this will be your mobile header with the logo on the left and the button on the right. The menu will be placed below.
Create a global CSS rule and tell the button you never want to display it:
.hamburger {
display: none;
}
Now for the mobile menu, you should change the appearance of the <nav> container and all its child element that you want to change. From now on your code should be wrapped around a media query, place the media queries at the bottom of your CSS file or at least, below the rules defined before:
#media screen and (max-width: 800px) {
// CSS code
}
Create another CSS rule targeting all the devices with a max resolution of 800px:
#media screen and (max-width: 800px) {
.hamburger {
display: block;
}
}
In short, you just said: "The menu button should always be hidden, but when a device has a width from 0 to 800px, I want to display it.
Now create another rule inside the media query #media screen and (max-width: 800px) and do the same you did for the header:
.mobileHeader {
width: 100%;
display: flex;
justify-content: space-between;
}
Basically you want that a certain width, the header is something like:
Now you should have two elements inside your <header>, <div> and <nav>, let's create a rule and tell the header that you would like to display those elements one below the other:
.header {
flex-direction: column;
padding: 20px;
}
Basically it is just like grid-auto-flow: row for grids.
Now do the same for the list, this time you want the opposite, you want that all the items will compose a grid with n rows and just one column:
.list {
grid-auto-flow: row;
list-style-type: none;
row-gap: 40px;
column-gap: 0;
justify-items: center;
}
With justify-items: center you're instructing the list to center the list items. It works only with display: grid, since you set display: grid in a global rule, you don't need to write it again as long as you don't need to change it.
Now assign a class to your <nav> and enter another rule in the media query:
.menu {
display: none;
}
Since your menu should be hidden when an user visits the website on mobile, it should be set on display: none by default.
Now, set a rule to target only devices with a width of 801 px and more with (min-width: 801px):
#media screen and (min-width: 801px) {
.menu {
display: block !important;
}
}
No matter what, you always want the menu to be displayed for devices which have a resolution wider than 800px.
Now, if you shrink your window the mobile menu should be vanished and here you need a bit of JS to open and close it, I am not going into the details since your question is totally related to CSS and I will only confuse you by going deeper but you will find everything in the pen I made for you.
https://codepen.io/alienopolis/pen/NWapXWZ
Finally, I would recommend you to take this free tutorial which covers everything you need to know about responsive design with CSS:
https://www.freecodecamp.org/news/css-flexbox-and-grid-tutorial/
HTML
<header class="header">
<div class="mobileHeader">
<img src="images/GameStar-Blanc.png" alt="logo" class="logo">
<button onclick={openMenu()} class="hamburger">Menu</button>
</div>
<nav class="menu">
<ul class="list">
<li class="listItem">A LA UNE </li>
<li>L'ACTUALITE</li>
<li>GUIDES ET ASTUCES</li>
<li>PROCHAINEMENT</li>
</ul>
</nav>
</header>
CSS
body {
width: 90%;
height: 800px;
}
.header {
display: flex;
width: 100%;
justify-content: space-between;
background: #583760;
align-items: center;
padding: 20px 60px;
}
.logo {
color: white;
}
.list {
display: grid;
grid-auto-flow: column;
list-style-type: none;
column-gap: 40px;
}
.listItem {
width: min-content;
white-space: nowrap;
}
nav a {
color: white;
font-weight: bold;
text-decoration: none;
text-transform: uppercase;
}
nav a:hover {
color: black;
}
.hamburger {
display: none;
}
#media screen and (min-width: 801px) {
.menu {
display: block !important;
}
}
#media screen and (max-width: 800px) {
.header {
flex-direction: column;
padding: 20px;
}
.mobileHeader {
width: 100%;
display: flex;
justify-content: space-between;
}
.hamburger {
display: block;
}
.menu {
display: none;
}
.list {
grid-auto-flow: row;
list-style-type: none;
row-gap: 40px;
column-gap: 0;
justify-items: center;
}
}
JS
const menu = document.querySelector(".menu");
let open;
function openMenu() {
if (open) {
menu.style.display = "none";
open = false;
} else if (!open) {
menu.style.display = "block";
open = true;
}
}

Responsive means you'll use media queries.
If your current CSS represents the way you want the menu to look on the desktop, then you wrap that menu-related css within a media query, which matches whatever your definition of desktop is.
something like:
/* not-menu-related generic css here ... */
/* menu-related css that should be used on both desktop/mobile here ... */
#media screen and (min-width:240px) and (max-width:480px) {
/* all your current (desktop) menu-related css here */
}
After that, you can make a similar #media .... { ... } block for mobile, and add the relevant CSS in there that makes it look whatever way you prefer there.

threw this together using #media and display:block, display:none hope it helps
header {
background: #583760;
}
header::after {
content: '';
display: table;
clear: both;
}
.logo {
max-height: 90px;
margin-left: 60px;
float: left;
padding: 10px;
}
nav {
margin-right: 60px;
float: right;
}
nav ul {
margin: 0;
padding: 0;
list-style: none;
}
nav li {
display: inline-block;
margin-left: 40px;
padding-top: 50px;
}
nav a {
color: white;
font-weight: bold;
text-decoration: none;
text-transform: uppercase;
}
nav a:hover {
color: black;
}
#nav:not(:target) {
right: -100%;
transition: right 1.5s;
}
#nav:target {
right: 0;
transition: right 1s;
}
.hamburgerIcon {
display: none;
}
#media only screen and (max-width: 600px) {
.hamburgerIcon {
display: block;
}
.hamburgerIcon div {
width: 35px;
height: 5px;
background-color: black;
margin: 6px 0;
}
nav a {
display: none;
}
}
<header>
<div class="container">
<img src="https://via.placeholder.com/60" alt="logo" class="logo">
<nav>
<ul>
<li>A LA UNE </li>
<li>L'ACTUALITE</li>
<li>GUIDES ET ASTUCES</li>
<li>PROCHAINEMENT</li>
<li>
<div class='hamburgerIcon'>
<div></div>
<div></div>
<div '></div>
</div>
</ul>
</nav>
</header>
also see w3schools.com/howto/howto_js_mobile_navbar.asp for further help building the nav if you need

Here's a solution with minimal JS.
You'll want to adjust your CSS for smaller screen sizes and use a media query for your larger screen sizes styles like, #media only screen and (min-width: 768px).
Then you'll want to add a click event to your nav to toggle an "open" class and style accordingly:
document.getElementById('navigation').onclick = () => {
document.body.classList.toggle('nav-open')
}
:root {
--header-height: 100px;
}
* {
box-sizing: border-box;
}
body {
margin: 0;
padding: 0;
}
header {
position: relative;
background: #583760;
height: var( --header-height);
}
header::after {
content: '';
display: table;
clear: both;
}
.container {
display: flex;
justify-content: space-between;
align-items: center;
padding: 10px;
height: 100%;
}
.container img {
height: 100%;
}
.hamburger {
color: white;
font-size: 36px;
user-select: none;
}
nav {
cursor: pointer;
}
nav a {
color: white;
font-weight: bold;
text-decoration: none;
text-transform: uppercase;
}
nav ul {
position: fixed;
top: 100px;
right: 0;
height: 100%;
width: 100%;
text-align: center;
flex-direction: column;
justify-content: center;
align-items: center;
padding: 30px;
margin: 0;
list-style: none;
background: #583760;
display: none;
}
nav ul li {
padding: 10px 0;
}
.nav-open nav ul {
display: flex;
}
#media only screen and (min-width: 768px) {
.logo {
max-height: 90px;
margin-left: 60px;
float: left;
padding: 10px;
}
.hamburger {
display: none;
}
nav {
margin-right: 60px;
float: right;
}
nav ul {
display: block;
padding: 0;
position: relative;
top: unset;
right: unset;
height: unset;
}
nav li {
display: inline-block;
margin-left: 40px;
}
nav a:hover {
color: black;
}
#nav:not(:target) {
right: -100%;
transition: right 1.5s;
}
#nav:target {
right: 0;
transition: right 1s;
}
}
<header>
<div class="container">
<img src="https://via.placeholder.com/150" alt="logo" class="logo">
<nav id="navigation">
<div class="hamburger">≡</div>
<ul id="navigationItems">
<li>A LA UNE </li>
<li>L'ACTUALITE</li>
<li>GUIDES ET ASTUCES</li>
<li>PROCHAINEMENT</li>
</ul>
</nav>
</header>

Can't make reappear hidden divs in a navbar once a button is pressed with help of media queries

I'm trying to reproduce this responsive Navbar offered by W3 schools.
So far everything works except that I don't get the other divs (which function as navigation option) to reappear as a vertical list.
I tried changing to background color of the first div (which should always appear no matter what) upon button press and it does work, meaning that the onClick of the navigation div does work. What I don't get is why won't the other divs show up?
Here is the relevant HTML code
<div id=navbar class="respNavBar">
<div id="first">
<a><b>TEST</b></a>
</div>
<div class="extra">
<a><b>TEST</b></a>
</div>
<div class="extra">
<a><b>TEST</b></a>
</div>
<div class="extra">
<a><b>TEST</b></a>
</div>
<div class=navigation href="javascript:void(0);" onclick="showRespBar()">
<a><b>...</b></a>
</div>
CSS CODE
.greetingsText {
font-family: Raleway;
font-size: 50px;
}
.greetings {
box-shadow: 3px 6px #232323;
margin-right: 67%;
min-width: 165px;
}
#navbar {
height: 55px;
background-color: #393939;
box-shadow: 3px 6px #232323;
display: flex;
flex-direction: row;
justify-content: space-evenly;
align-items: center; /* this makes shit center align vertically*/
min-width: 375px;
}
#navbar div:hover {
background-color: #a4a4a4;
}
.navigation {
display: none;
}
#navbar div {
height: 100%;
}
a {
margin-top: 10px;
display: block;
font-family: Raleway;
font-size: 30px;
text-align: center; /*this makes shit center horizaontally*/
}
.container {
margin-left: 12%;
margin-top: 2%;
margin-right: 12%;
}
#media screen and (max-width: 750px) {
#navbar {
display: block;
}
#navbar div:not(#first):not(.navigation) {display: none;}
#first {
float: left;
display: block;
}
.navigation {
display: block;
float: right;
}
}
#media screen and (max-width: 750px){
.extra {
float: none;
display: block;
text-align: left;
}
}
JS CODE
function showRespBar() {
var className = document.getElementById("navbar").className;
if (className === "respNavBar") {
document.getElementById("navbar").className += "additional";
} else {
document.getElementById("navbar").className = "respNavBar";
}
alert(className);
}

One possible issue i found in your JS code, inside if condition,
document.getElementById("navbar").className += "additional"; should be document.getElementById("navbar").className += " additional";
You are missing a space, due to which respNavBaradditional class gets applied to navbar instead of respNavBar addition.

flex property is not working as expected when video element is included

I need to display video and when user presses menu, I need to divide the screen to 2 halves vertically (adjacent to each other) and I need to display a text in middle (horizontally and vertically) of first half and need to display a list (which will be created dynamically using javascript) in the second half (all this should happen while video is being played in the background. Basically menu should be transparent). I created a parent div and 2 child divs with flex as below.
html code:
<!DOCTYPE html>
<html>
<head>
<title>VOD</title>
<script src='js/index.js'>
</script>
<style>
html, body
{
height:100%
}
#vid
{
position: fixed;
top: 50%; left: 50%;
z-index: 1;
min-width: 100%;
min-height: 100%;
width: auto;
height: auto;
transform: translate(-50%, -50%);
}
#mid {
display: flex;
height: 100vmin;
justify-content: stretch;
flex-flow: row nowrap;
background: blueviolet;
z-index: 2;
}
#mid1, #mid2 {
flex: 1;
}
#mid1 {
display: flex;
justify-content: center;
align-items: center;
background: red;
text-align: center;
}
#mid2 {
display: flex;
justify-content: center;
align-items: center;
background: blue;
text-align: center;
}
</style>
</head>
<body>
<!--<video id='vid' src='textMotion.mp4' autoplay loop></video>-->
<div id='mid' style="display:none">
<!--<div id='mid'>-->
<div id='mid1'>
<h2>text1</h2>
</div>
<div id='mid2'>
<h2>text2</h2>
</div>
</div>
</body>
</html>
Javascript Code:
function changeChannel(e) {
console.log('received keyEvent : ' + e.keyCode);
let keyCode = e.keyCode;
if(keyCode == 77) {
document.getElementById('mid').style.display = 'block';
}
}
document.addEventListener('keydown', changeChannel);
I am facing below problems.
1) If I press 'M', menu is not getting displayed. It should display transparent screen (with strings in 2 divs) while video running in background.
2) For testing purposes, I commented video element. Then if I press 'M', 2 divs are getting displayed horizontally at the top.
Only if I don't add the attribute "display=none" to mid, it is working as expected. Can any one please help me to fix this issue.

You're setting #mid back to display:block instead to the desired display: flex... Instead:
create a CSS class .hidden {display: none;} and assign it to your #mid element
in JS use Element.classList and it's .toggle() method to toggle that 'hidden' class
Set #vid to z-inedx: -1 since it should be in the background while your #mid has no position set.
var EL_mid = document.getElementById('mid')
function changeChannel(e) {
if (e.key === 'm') {
EL_mid.classList.toggle("hidden");
}
}
document.addEventListener('keydown', changeChannel);
*{margin:0;box-sizing:border-box;}html,body{height:100%;font:14px/1.4 sans-serif;}
#vid {
position: fixed;
top: 50%;
left: 50%;
z-index: -1;
min-width: 100%;
min-height: 100%;
width: auto;
height: auto;
transform: translate(-50%, -50%);
}
#mid {
display: flex;
height: 100vmin;
justify-content: stretch;
flex-flow: row nowrap;
background: blueviolet;
z-index: 2;
}
#mid.hidden {
display: none;
}
#mid1,
#mid2 {
flex: 1;
display: flex;
justify-content: center;
align-items: center;
background: red;
text-align: center;
}
#mid1 {background: red;}
#mid2 {background: blue;}
<video id='vid' src='http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4' autoplay loop></video>
<div id='mid' class="hidden">
<div id='mid1'>
<h2>text1</h2>
</div>
<div id='mid2'>
<h2>text2</h2>
</div>
</div>

Ok here it is, if you're using jquery you can just toggle between display: hidden and display: block or you can add a class .hidden that just have this rule: display: hidden and toggle onclick if the element has it or not as #RokoCBuljan said.
html,body {
width: 100%;
height: 100%;
}
#vid {
display: block;
position: fixed;
bottom: 12%; left: 30%;
background: slateblue;
height: 300px;
width: 360px;
}
#mid {
display: flex;
z-index: 1;
height: 100vmin;
justify-content: stretch;
flex-flow: row nowrap;
background: blueviolet;
}
#mid1, #mid2 {
flex: 1;
}
#mid1 {
display: flex;
justify-content: center;
align-items: center;
background: red;
text-align: center;
}
#mid2 {
display: flex;
justify-content: center;
align-items: center;
background: blue;
text-align: center;
}
With the propertie position: fixed; I'm getting the div outside of the normal flow and the z-index is just to be sure that it will be placed on top of the other divs... If you want to add a nicer appearance add the property (with the toggle function you have to create) of opacity: 1; and opacity: 0; so it will fade in and fade out
working pen: https://codepen.io/manAbl/pen/WJqRKR?editors=0100 ;
Hope helps :)

Increase the size of flex item on button click

I want to add a feature such that when I click the flex-item it must expand to size of complete row below it. Like basically increase it's size when I click on it, and get back to previous size when I click it again.
The subsequent elements must remain of same size and be shifted to next row after the expanded clicked flex-item and follow the same properties of flex-box. The flex-items must be clickable elements which expand on click and get back to same size on another click.
I am not able to figure this out and I am new to front-end technologies.
$('#clickMe').click(function() {
$('#Demosss').append($('<li id="flx-item" class="flex-item">').text('dar'));
$(this).insertAfter($('[class^="flex-item"]').last());
});
.flex-container {
padding: 0;
margin: 0;
list-style: none;
-webkit-flex-direction: row; /* Safari */
flex-direction: row;
flex-wrap: wrap;
}
.flex-item {
background: tomato;
padding: 5px;
width: 200px;
height: 150px;
margin-top: 10px;
margin-right: 15px;
line-height: 150px;
color: white;
font-weight: bold;
font-size: 3em;
text-align: center;
display: inline-block;
}
ul li{
display: inline;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul id="Demosss" class="flex-container">
<!-- add LI here -->
</ul>
<button id="clickMe">Click Me</button>

You can toggle class on click.
var i = 1; // just for differentiate divs
$('#clickMe').click(function() {
$('#Demosss').append($('<li id="flx-item" class="flex-item">').text('dar-'+i));
$(this).insertAfter($('[class^="flex-item"]').last());
i++
});
$(document).on('click', '.flex-item' ,function(){
$(this).toggleClass('flexActive')
})
.flex-container {
padding: 0;
margin: 0;
list-style: none;
-webkit-flex-direction: row; /* Safari */
flex-direction: row;
flex-wrap: wrap;
}
.flex-item {
background: tomato;
padding: 5px;
width: 200px;
height: 150px;
margin-top: 10px;
margin-right: 15px;
line-height: 150px;
color: white;
font-weight: bold;
font-size: 3em;
text-align: center;
display: inline-block;
}
ul li{
display: inline;
}
.flexActive{
width:auto;
display:block;
flex: 1 1;
margin-right:0;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul id="Demosss" class="flex-container">
<!-- add LI here -->
</ul>
<button id="clickMe">Click Me</button>

You might want to just add a class to the clicked flex-item that sets its width to 100%, then toggle this class on click.
Now I don't know if you wanted to: (a) just expand one flex-item at a time; or (b) you'd want to retract flex items on click only, but I made scenario (a) in my answer as this probably makes more sense. Nevertheless, you can go for scenario (b) by deleting this line of code:
$('.expand').removeClass('expand');
$('#clickMe').click(function() {
$('#Demosss').append($('<li id="flx-item" class="flex-item">').text('dar'));
$(this).insertAfter($('[class^="flex-item"]').last());
});
$(document).on('click','.flex-item',function(){
$('.expand').removeClass('expand');
$(this).toggleClass('expand');
});
.flex-container {
padding: 0;
margin: 0;
list-style: none;
-webkit-flex-direction: row; /* Safari */
flex-direction: row;
flex-wrap: wrap;
}
.flex-item {
background: tomato;
padding: 5px;
width: 200px;
height: 150px;
margin-top: 10px;
margin-right: 15px;
line-height: 150px;
color: white;
font-weight: bold;
font-size: 3em;
text-align: center;
display: inline-block;
}
ul li{
display: inline;
}
.expand {
width:100%;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul id="Demosss" class="flex-container">
<!-- add LI here -->
</ul>
<button id="clickMe">Click Me</button>