Develop Reference

how can I add CSS transition or animation, when the class toggling with JQ or JS?

I gonna add some transition or animation when my class toggling, for instance, on these below codes, I have a sidebar which I've added some animation to it, with CSS Animation library.
when sidebar opens, that I've toggle it with another class, animation working, but when it's closing, animation doesn't work anymore.
more detail about what I want:
1- I'm gonna when sidebar1 class being toggle with sidebar_menu, some animation or transition grow to apply on it, as I explained at the top, I mean when sidebar being closed animation or transition grow to apply on it
2- it's all right when the sidebar open, I just want when the sidebar get open via animation, being closed with animation, that's all
I'm sorry if I explained badly.
if it was any question please ask I'll answer
here a demo of what I made, that I think it shows my mean better
Demo
here my JQ codes:
$(document).ready(function() {
$(".response_menu_icon").click(function() {
$(".sidebar1").toggleClass("sidebar_menu");
});
//
$(".response_more_icon").click(function() {
$(".area1").toggleClass("area_more");
});
});
here my HTML codes:
<i data-feather="more-horizontal" class="response_more_icon"></i>
<!-- -->
<a href="" class="sidebar1 animate__animated animate__slideInRight">
<div class="sidebar_right">
<!-- -->
<h4>Dashboard</h4>
<i data-feather="settings"></i><span>dashboard</span>
<!-- -->
</div>
</a>
and here my CSS codes:
.sidebar1 {
display: none;
}
.sidebar_menu {
// display: none;
width: 250px;
height: 100%;
position: fixed;
top: 80px;
display: flex;
flex-wrap: wrap;
flex-direction: column;
text-align: center;
background-color: #ffffff;
-webkit-box-shadow: -2px 10px 8px 3px #eeeeee;
-moz-box-shadow: -2px 10px 8px 3px #eeeeee;
box-shadow: -2px 10px 8px 3px #eeeeee;
}

Here's how I think you could do it. You check if the class is already applied and add the animation depending on this.
feather.replace();
$(document).ready(function() {
$(".response_menu_icon").click(function() {
if($(".sidebar1").hasClass("sidebar_menu")){
$(".sidebar1").addClass("animate__slideOutRight");
setTimeout(function(){$(".sidebar1").toggleClass("sidebar_menu");},200);
} else {
$(".sidebar1").removeClass("animate__slideOutRight");
$(".sidebar1").addClass("sidebar_menu");
$(".sidebar1").addClass("animate__slideInRight");
};
//$(".sidebar1").addClass("animate__slideOutRight");
});
//
$(".response_more_icon").click(function() {
$(".area1").toggleClass("area_more");
});
});
I use a set timeout to remove the class after the animation finishes playing.

You can add your class with jQuery or JS and let your CSS handle your transition to the new position.
For example:
You have a sidebar that when on click of a button opens and then on click again closes.
The sidebar CSS would have the sidebars starting point (i.e. position). Then you could style the other class you are going to add to the ending position you wish for your element, etc.
//starting position is hidden off the screen
#sidebar{
position: absolute;
top: 0px;
left: -250px;
width: 250px;
height: 100vh;
background-color: blue;
transition: ease left .3s;
}
//brings the element into view when opened
#sidebar.toggled{
left: 250px;
}
You can then add your classes as needed on a button click.
Here is an example JSFiddle
Another helpful resource when coding is at MDN. Here is a link to show some other uses for the CSS Transition property.

CSS: sticky navbar with dropdown-menu not showing (-overflow)?

I try to have a sticky navbar with a dropdown-menu.
But the dropdown-menu is not showing.
I player around with this for too long now i guess.. and the biggest problem: in jsfiddle the dropdown-menu is now showing at all. However at my pc the dropdown-menu is showing as long as the 'sticky' class is not added, then becomes invisible, too.
Here in stackoverflow I read about overflow:hidden in the navbar causing the problem. Deleting that makes the dropdown-menu work but the navbar disappears.
-> dropdown-menu invisible
https://imgur.com/JYcswYq
-> navbar not shown
https://imgur.com/Gk5P6gN
I assume the error somewhere here but couldnt figure it out..
#navbar{
overflow: hidden;
font-size: 25px;
background-color: #333333;
}
main{
padding-top: 30px;
padding-bottom: 30px;
}
.dropdown-content {
right:0;
display: none;
position: absolute;
background-color: #333333;
min-width: 160px;
box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
z-index: 1;
margin-top: 48px;
}
There you can find a reduced part of my code. Here the dropdown doesnt show at all. (at my pc it at least shows as long as the sticky-class isnt added)
https://jsfiddle.net/xncjazky/3/
Hopefully i can get any advice on how to make the dropdown-menu popup even with the sticky-navbar.
Thank you.

Remove the overflow:hidden as you found out yourself, and add a height or min-height property to the #navbar selector, like so:
#navbar {
//overflow: hidden;
font-size: 25px;
background-color: #333333;
min-height: 48px;
}
The problem occurs because of the use of floats in your navigation items.
So another way to solve the issue without setting a fixed height to the #navbar, is changing your navigation items from float:left to display:inline-block.
Like so:
#navbar {
//overflow: hidden;
font-size: 25px;
background-color: #333333;
}
.lnav{
//float: left;
//display: block;
display: inline-block;
padding: 10px;
text-align: center;
color: #d9d9d9;
text-decoration: none;
cursor: pointer;
}
Hope this helps.
Cheers, Jeroen.

I had the same problem and solved it by placing the navbar inside the "div" element with "position: sticky".
For example:
<div style="top: 0; position: -webkit-sticky; position: sticky">
<nav>
<!-- here goes the code of navbar -->
</nav>
</div>

Removing overflow: hidden; will cause the background color of the main navbar to disappear if you have the li elements set to float: left; or float: right;.
I managed to fix the issue of content not appearing by making the .dropdown-content div class position: sticky; with the ul.topnav element. Problem is, a new glitch arises as the dropdown list appears with the background color assigned to it, acting as it should, except for one thing. The background color of the topnav list comes down around the dropdown, making the whole list fatter instead of showing a simple lonely dropdown menu.

Partially exposed div to slide up when image is clicked

this might be a weird one but what I am trying to do is make a div slide up from the bottom of the screen when someone clicks an image. To paint this clearer, imagine the Windows desktop, and if you click the start menu image/icon, instead of the start menu popping up from the button, the entire start menu bar would slide up exposing the entire div.
What I'm doing now (forgive me as I have just learned JS and jQuery from codecademy) is using the slideUp function. However, this is causing the div to slide down out of sight instead of up, exposing the entire div. The goal is that when you click the button the div slides up, and if you click the button again (or anywhere outside the div) it'll slide back down leaving the top 60px exposed like before.
Here's my JS/jQuery code:
$('#start').click(function() {
$('#nav').slideUp('slow');
});
My HTML
<div id="nav" class="nav">
<img id="start" src="img/btn_start.png">
</div>
My CSS
* {
padding: 0px;
margin: 0px;
}
body {
width: 100%;
font-family: Helvetica;
}
.nav {
width: 100%;
min-width: 100%;
height: 500px;
background: #000;
color: #fff;
position: absolute;
bottom: -440px;
text-align: center;
padding: 5px;
box-sizing: border-box;
overflow: auto;
}
.nav ul li {
display: inline;
}
.nav li {
padding: 20px;
margin-top: 80px;
position: relative;
top: 50%;
transform: translateY(-50%);
}
#start {
float: left;
}
Thanks, and I hope this isn't too ridiculous.

Instead of slideUp you should use
$('#start').click(function() {
$('#nav').animate({bottom: "0px"}, 1200);
});
...which will smoothly animate from the current location until the bottom is at 0px (i.e. aligned with the bottom of the containing element).
For even smoother results, checkout velocity.js (http://julian.com/research/velocity/), which does even smoother animation by synchronising with browser frame updates.
JsFiddle here: http://jsfiddle.net/11r46jnm/
You can also do this with CSS transitions instead. For stuff like this I like to hook my CSS into data attributes on the HTML:
<div id="nav" class="nav" data-nav-state="collapsed">
<img id="start" src="img/btn_start.png">
</div>
...use javascript to change the attributes...
$('#start').click(function() {
//toggle the nav element between two states
var currentState = $('#nav').attr("data-nav-state");
var newState = "collapsed";
if ( currentState === "collapsed" ) {
newState = "expanded";
}
$('#nav').attr("data-nav-state", newState);
});
Finally we use CSS to set the positions of the two states, and to ensure that transition is smooth. CSS transitions have much better performance than jQuery, so I recommend using them if you can:
#nav[data-nav-state=collapsed] {
bottom: -440px;
}
#nav[data-nav-state=expanded] {
bottom: 0px;
}
#nav {
transition: bottom 1.2s ease;
}
See this jsFiddle for a demo: http://jsfiddle.net/Lv2saepy/1/

Problems with position:fixed and responsive / adaptive Layout

First look at this website: http://irismediainfo2.lili.de/spip.php?article4924
On my screen it looks like on this screenshot: chrome - full window - desktop resolution: 1440x900
I think for most of you it will look diferent but thats part of the problem...
The main div with the gray border is inside an other div with id="page".
#page {
width: 560px;
margin: 50px auto 0px auto;
position:relative;
}
I created a new div with id="toolbar", that looks like it sticks to this #page-div, but it does not scroll with the page. On the website I linked above u can see the #toolbar as a dummy-box (grey with some Text).
At the moment the I use position:fixed in #toolbar.
When I position it at the side of #page so that it LOOKS like it is attached to it, and I resize the browser window... the two divs dont move the same way because the position of #page is calculated from the middle (by margin:auto) and the position of #toolbar is calculated from the side of the browser window (by position:fixed). So it is not attatched anymore in any other windowsizes.
I tried to make the #page float, to make the #toolbar appear at the side but that destroys the "margin:auto" of the #page so it is not centered anymore.
I also tried
#toolbar {
position: fixed;
center: 0px; }
Because I hoped there could be a way to calculate the position for position:fixed from the center.
Nothing worked, I hope you know a solution.
Actually everything I want is something like:
#page {
width: 560px;
margin: 50px auto 0px auto;
position:relative; }
#toolbar {
position: fixed;
center: 0px 280px 0px 0px; }
I would like to do this with minimal code and resources because I don't want to make the loading speed worse because of a little toolbar.
If you need more specific code from my css or html please tell me.
I hope the target and the problem is clear.

All you need is a wrapper-div that centers the whole block and algin the toolbar after that, since your #page has a fixed width in every viewport.
HTML:
<div class="wrapper">
<div id="toolbar">
content
</div>
</div>
CSS:
#toolbar {
height: auto;
padding: 10px 20px 10px 15px;
background-color: rgba(170, 170, 170, 0.5);
border: 1px solid #AAA;
border-radius: 0px 5px 5px 0px;
text-align: center;
margin: 0px auto 0px 279px;
}
.wrapper {
position: fixed;
top: 30%;
left: 50%;
}

CSS - displaying a dynamic height floated DIV - missing background image

My Goal:
Here is what I'm trying to accomplish. We have an list of categories that appear on a page. The number of categories is unknown. The description can be pretty much any size... yet we want a uniform look. So, we are using the dotdotdot plugin to put ellipses on the paragraphs. When you hover over the item, it should expand the description and show the full text.
I want that hover to float or overlay whatever is below it. Due to some of my layout items (see my NOTE below) my sccontainer element doesn't have a set height. It's dynamic based on the content... with a max-height set.
When I change that height to AUTO in the hover event (which causes the text to flow down and displays all the content), I lose the background on the sccontainer element.
Some pertinent CSS:
.sccontainer { width: 280px; zoom: 1; float: left; margin: 5px 10px; padding: 0; border: 1px solid #8697a1; -moz-border-radius: 5px; border-radius: 5px; -moz-box-shadow: 0 0 6px #777; -webkit-box-shadow: 0 0 6px #777; box-shadow: 0 0 6px #777; -ms-filter: "progid:DXImageTransform.Microsoft.Shadow(Strength=6, Direction=90, Color='#777777')"; filter: progid:DXImageTransform.Microsoft.Shadow(Strength=6, Direction=90, Color='#777777'); position: relative; background: #fff url(http://imagecss.com/images/background.jpg) repeat-x left top; }
.sccontainer .parent { position: absolute; width: 270px; }
.sccontainer .image { margin: 5px; float: left; }
.sccontainer .image img { width: 48px; }
.sccontainer .icon { margin: 0; }
.sccontainer p { margin: 8px; padding: 0; max-height: 145px; }
.sccontainer h1 { line-height: 24px; display: inline-block; vertical-align: middle; width: 200px; height: 48px; padding: 0; margin: 5px 0 0 0; overflow: hidden; }
.sccontainer h1 a { padding: 0; font-size: 24px; color: #fff; font-weight: normal; }
.sccontainer .content { position: relative; height: 210px; padding: 0 5px; font-size: 15px; line-height: 22px; width: 270px; }
.sccontainer a:hover { text-decoration: underline; }
.sccontainer.hover { height: 250px; }
.sccontainer.hover .content { height: auto; }
.sccontainer.hover .content p { min-height: 135px; max-height: none; }
jsFiddle:
Here is a jsFiddle version of what I have right now. You can see this in action, if you hover over the text in the blue box. It's a bit large, so I used jsFiddle instead of putting all the bits here code tags...
http://jsfiddle.net/ztMM5/1/
And here is a mockup of what I'd like to see. Method 5a expands slightly to show the full content.... yets overlaps the red line. None of the other items move around or are affected.
NOTE: Sorry for the size of things. I've trimmed it down about as much as I can. Also, I am modifying an existing intranet website... it's 3rd party, so I have limited control of the source code - hence the table usage. :(
What I've Tried/Researched:
I believe the issue stems from the fact that my sccontainer item is floating, and doesn't have a height specified. That's why the image disappears.
I had a version that kept the background... but the sccontainer box didn't resize like we need... the text just overflowed it... rather ugly.
I don't know enough CSS to make this all work right. I'm not adverse to using jQuery to do more if needed.
I did work on a version that handled most of the hover using the :hover stuff... but it didn't work quite as well as the jQuery approach.

This answer may not solve your specific problem but it may help others with a similar scenario (working with tables makes difficult to render a clean layout in most cases.)
I ran into this issue before and this is how I solved it. It basically relies in an html nested div structure to achieve the expandability of the content without affecting the floating layout of the near elements :
<div id="wrapper" class="cf"><!--wrapper with border and CLEARED-->
<div class="sccontainer"><!--position relative-->
<div class="inner"><!--position absolute-->
<div class="content"><!--position relative-->
<!-- my content here -->
</div>
</div>
</div>
<!-- more containers etc-->
</div><!--END wrapper-->
First, we are going to apply the infamous clear-fix hack to the #wrapper container (use your preferred method):
.cf:after {
visibility:hidden;
display:block;
content:"";
clear:both;
height:0
}
* html .cf {
zoom:1
}
/* IE6 */
*:first-child+html .cf {
zoom:1
}
Then the style for the .sccontainer container :
.sccontainer {
width: 280px; /* or whatever - could be % for responsiveness */
padding-bottom:200px; /* any value to give height without using height ;) */
position: relative;
float: left;
margin: 5px 10px; /* or whatever */
overflow: hidden; /* this is important to keep all same height and big content out of sight */
z-index: 1; /* this is important too, see later */
background: white url("imagebackground.jpg") 0 0 repeat-x; /* need to explain? */
}
Then the .inner container, which actually will help to keep the layout in order if we hover the elements
.inner {
position: absolute; /* please don't move */
width: 100%; /* to fill the whole parent container */
height: 100%; /* same */
}
And the content :
.content {
position: relative;
background: white url("imagebackground.jpg") 0 0 repeat-x; /* not redundant though */
width: 100%; /* helps to fill the gaps with small content */
height: 100%; /* same, specially if using image backgrounds */
/* other styles, etc */
}
NOTE: we should apply same border-radius properties to the three containers and box-shadow to .sccontainer and .content for consistency
Now, what happens when we hover ?
.sccontainer:hover {
overflow: visible; /* show the full content */
z-index: 999; /* place me on top of the others if needed (which lower z-index, remember?) */
}
.sccontainer:hover .content {
height: auto; /* as it really is, including background image */
}
NOTES : this effect will happen regardless if the content's height is smaller than the parent container's height. You may not like the effect mostly if you are using borders and shadows (could be shown as smaller box inside the parent container) so we could add an extra class to .sccontainer like
<div class="sccontainer withhover">
and apply the hover effects only if that class exist like
.sccontainer.withhover:hover {
overflow: visible;
z-index: 999;
}
... and use a bit of jQuery to remove that class for shorter content, so it won't be affected :
jQuery(document).ready(function ($) {
$(".sccontainer").hover(function () {
var $contentHeight = $(this).find(".content").height();
if ($(this).innerHeight() > $contentHeight) {
$(this).removeClass("withhover");
}
});
});
See JSFIDDLE