Develop Reference

ReactJS show element on hover

What's the best approach to achieving a lasting effect like in this gif?
I thought the framer-motion whileHover attribute would be my best chance, but I misunderstood how it works, I thought its possible to enter from and to parameters like in CSS animation.
I want to reveal the 'footer' either while the cursor hovers on it or when reaching a certain viewport height.
What's in the gif was made with keyframes animation in css.
I'd appreciate any hint, guide, link to a video on how to build such things.
Thanks in advance

I believe that you can achieve that exact effect using CSS only. This is often preferable, since javascript would bloat your code and be slower to execute.
You can see a way of achieving this effect in this fiddle
Basically, you can use the "hover" pseudoclass to make the aesthetic changes, and then use the "transition" property to animate them.
In the fiddle above, this is the code that actually does the trick:
/* setting base styles for the footer element */
footer {
margin: 0 auto;
width: 200px;
transform: translateY(60px);
transition: width 1s, transform 1s;
}
/* having an inner child will give that "truncated border radius" effect you see in the gif */
footer .inner {
background-color: lightblue;
padding: 3em;
border-radius: 50%;
transition: border-radius 1s;
}
/* Make changes using the "hover" pseudoclass */
footer:hover {
transform: translateY(0px);
width: 100%;
}
footer:hover .inner {
border-radius: 0%;
}
Please be aware that the fiddle I posted is just a hint on how to build this component, but it still miss some features, like the handling of the footer text content itself (right now it won't work well if it's multiline) and accessibility.

See this solution using only css:
* {
margin: 0px;
padding: 0px;
box-sizing: border-box;
font-family: Segoe UI, sans-serif;
}
.container {
width: 100vw;
height: 100vh;
}
.container main {
width: 80%;
height: 400px;
margin: auto;
border-radius: 30px;
display: flex;
justify-content: center;
align-items: center;
font-size: 3em;
font-weight: 800;
color: white;
background: rgb(70, 100, 52);
}
.container footer {
width: 100%;
display: flex;
justify-content: center;
}
.container footer .expand {
width: 200px;
height: 50px;
background: royalblue;
border-radius: 40px 40px 0 0;
position: fixed;
bottom: 0px;
display: flex;
justify-content: center;
font-size: 1em;
color: white;
transition: 1000ms;
}
.container footer .expand:hover {
width: 100%;
animation-name: resize;
animation-duration: 700ms;
height: 150px;
border-radius: 0;
}
#keyframes resize {
0% {
height: 50px;
border-radius: 60px 60px 0 0;
}
50% {
height: 160px;
border-radius: 90px 90px 0 0;
}
100% {height: 150px;}
}
<div class="container">
<main>
this is your main feed
</main>
<footer>
<div class="expand">^^^</div>
</footer>
</div>

How to Hide the Back Side of Door Once Open? Vanilla JS/CSS Door Animation

So I have a door animation using vanilla JS with CSS for the styling. Is there a way to hid the backside of the door when it's open?
As well as making the door not clickable. (I don't have it as toggle, but you can still interact with the button.)
Basically I just want a back background and not see the backwards "1" when the door is open.
Any ideas on how to make that happen? I imagine it's adding another div with style, but I really am not sure after goofing around with this for a while.
Cheers!
Codepen here: https://codepen.io/LovelyAndy/pen/LYZKEvB
HTML:
<div>
<div class="door-back">
<button class="door">1</button>
</div>
</div>
CSS
.door-back {
position: relative;
height: 105px;
width: 105px;
background-image: url("https://i.redd.it/e84gxikhoul21.jpg");
border-radius: 50px;
background-size: cover;
margin: 0 auto;
margin-top:50px;
}
.door {
position: absolute;
height: 105px;
width: 105px;
font-size: 1.5em;
color: white;
border: 2px solid goldenrod;
border-radius: 50px;
background: black;
cursor: pointer;
transform-origin: left;
transition: all 0.5s ease-in-out;
}
.doorOpen {
transform: perspective(1200px) translateZ(0px) translateX(0px) translateY(0px)
rotateY(-150deg);
}
.d1 {
top: 100px;
left: 60px;
}
JS
const doorEl = document.querySelector(".door");
doorEl.addEventListener('click', openTheDoor)
function openTheDoor() {
doorEl.classList.add("doorOpen");
}

Possible solution: change the text color on transition:
const doorEl = document.querySelector(".door");
doorEl.addEventListener('click', openTheDoor)
function openTheDoor() {
doorEl.classList.toggle("doorOpen");
}
.door-back {
position: relative;
height: 105px;
width: 105px;
background-image: url("https://i.redd.it/e84gxikhoul21.jpg");
border-radius: 50px;
background-size: cover;
margin: 0 auto;
margin-top: 50px;
}
.door {
position: absolute;
height: 105px;
width: 105px;
font-size: 1.5em;
color: white;
border: 2px solid goldenrod;
border-radius: 50px;
background: black;
cursor: pointer;
transform-origin: left;
transition: transform .5s ease-in-out,
color 0s .3s linear
}
.doorOpen {
transform: perspective(1200px) translateZ(0px) translateX(0px) translateY(0px) rotateY(-150deg);
color:black;
}
.d1 {
top: 100px;
left: 60px;
}
<div>
<div class="door-back">
<button class="door">1</button>
</div>
</div>

You can achieve both disable the click on door button and not to show the '1' after the door is open in CSS.
.doorOpen {
...other css
// you just need add this property which disables click
pointer-events: none;
color: black;
}
Making the text color black will make it complete black.
If you completely want to remove the text '1' then you can do like below.
const doorEl = document.querySelector(".door");
doorEl.addEventListener('click', openTheDoor)
function openTheDoor() {
doorEl.classList.add("doorOpen");
doorEl.textContent='';
}
These are two ways I can think of.

You can try to do something like this https://codepen.io/dom-the-dev/pen/MWeqaJq just have a button on the opposite side that acts like the back of the door
<div>
<div class="door-back">
<button class="door front">1</button>
<button class="door back">2</button>
</div>

why css transition is not working with js

<button className={this.state.isSaveDraft===true?
"cts_not_allowed stepper_btn_back" : "stepper_btn_back"} onClick={
this.state.isSaveDraft===false && this.approval_submitHandler} >
Update An
<p className='warning_message' >You have changed Metadata, please re calculate pre-opso</p>
</button>
.cts_not_allowed{
// pointer-events: none;
cursor: not-allowed !important;
position: relative;
transition: width 2s;
}
.warning_message{
display: none;
transition: 0.9s ease-in-out;
}
.cts_not_allowed:hover .warning_message{
display: block;
position: absolute;
bottom: 3vw;
right: 1vw;
// background-color: #ffffff;
border: 1px solid #ffffff;
width: 30vw;
color: red;
}
i tried everything also search a lot but dont know where the problem is in code mostly i used this transition with hover and it works for me iam using position relative and absolute thanks for help

Probably something like this:
.cts_not_allowed {
/* pointer-events: none; */
cursor: not-allowed !important;
position: relative;
transition: width 2s; /* is this used anywhere? */
}
.warning_message {
position: absolute;
bottom: 3vw;
right: 1vw;
/* background-color: #ffffff; */
border: 1px solid #ffffff;
width: 30vw;
color: red;
opacity: 0;
pointer-events: none;
transition: opacity 0.9s ease-in-out;
}
.cts_not_allowed:hover .warning_message {
opacity: 1;
pointer-events: auto;
}
Note that commenting out in CSS only works with /* ... */. CSS doesn't understand //, only SCSS does.
Also you cannot transition between display: none and display: block. Use opacity instead.
Depending on where it sits you might want to toggle pointer-events of your warning-message, too.

Create a background transition in a row

I have a row with two blocks inside in which a background image opens in the row when a picture is passed on.
Unfortunately I can not change the html code much while I can change it with css.
So when I go to the internal image, the hover class is added to the line.
I would like the background to somehow have a transition.
For now it only takes one shot and I can not change it.
this is my css:
#rowContattaci {
background: black;
padding-left: 0px !important;
padding-right: 30% !important;
transition: 1s;
min-height:100px;
margin-left: 0% !important;
left: 0px !important;
}
#rowContattaci.hover {
background: url("https://onaliternote.files.wordpress.com/2016/11/wp-1480230666843.jpg?crop");
transition: 2s !important;
}
<div id="rowContattaci" data-vc-full-width="true" data-vc-full-width-init="true" class="vc_row wpb_row vc_row-fluid eightRow sectionContattaci rowHome section" style="position: relative; left: -231.094px; box-sizing: border-box; width: 1920px; padding-left: 231.094px; padding-right: 242.906px;"></div>

It looks like a typo. Useful ref: CSS :hover Selector
Anyway change #rowContattaci.hover to #rowContattaci:hover to resolve your issue.
Update Snippet:
#rowContattaci {
background: black;
padding-left: 0px !important;
padding-right: 30% !important;
transition: 1s;
min-height:100px;
margin-left: 0% !important;
left: 0px !important;
}
#rowContattaci:hover {
background: url("https://onaliternote.files.wordpress.com/2016/11/wp-1480230666843.jpg?crop");
transition: 2s !important;
}
<div id="rowContattaci" data-vc-full-width="true" data-vc-full-width-init="true" class="vc_row wpb_row vc_row-fluid eightRow sectionContattaci rowHome section" style="position: relative; left: -231.094px; box-sizing: border-box; width: 1920px; padding-left: 231.094px; padding-right: 242.906px;"></div>
P.S. My suggestions:
1) Keep all your styles together i.e. to not keep half of your styles inline and half external.
2) Avoid using !important everywhere.

There's a couple things you need to change to get your example to work:
As others have mentioned, there's a typo with your css hover style - it should be :hover not .hover
You need to apply some positioning and sizing on your background image otherwise, you only see the top left of the image, which also happens to be black, so it looks like it just flashes but does not show the logo.
Tips: I would also second thebrownkid's recommendation that you separate your css styles rather than writing in-line css. The example below removes all the unnecessary styles.
#rowContattaci {
background-color: black;
padding-right: 30%;
min-height: 100px;
}
#rowContattaci:hover {
background-color: transparent;
background-image: url("https://onaliternote.files.wordpress.com/2016/11/wp-1480230666843.jpg?crop");
background-position: center;
background-repeat: no-repeat;
background-size: cover;
transition: 1s;
}
<div id="rowContattaci"></div>

You couldn't make your background picture blend in a transition. However you could use a trick with 2 divs one on top of the other. The bottom one will always have a background image, the top one will change color from transparent to black in transition.
All you have to do is to align the elements properly.
#rowContattaci {
background-color: black;
background-image: none;
transition: 1s;
min-height:100px;
margin-left: 0% !important;
left: 0px !important;
margin: 0;
}
#rowContattaci:hover {
background-color: transparent;
}
#rowContattaciBack {
background-image: url("https://onaliternote.files.wordpress.com/2016/11/wp-1480230666843.jpg?crop");
background-size: 300px;
}
<div id="rowContattaciBack" style="position: relative; left: -231.094px; box-sizing: border-box; width: 1920px; padding-left: 231.094px; padding-right: 242.906px; margin:0;">
<div id="rowContattaci" data-vc-full-width="true" data-vc-full-width-init="true" class="vc_row wpb_row vc_row-fluid eightRow sectionContattaci rowHome section">
</div>
</div>

Artboard Style Layout Using CSS Transform Scale

I'd like to have the .container and .box scale in and out from the one I clicked on. The problem I'm running into is when I scale in and out, it scales in and out from the first .box div, not the one I clicked on.
Each .box will contain it's own unique content, so when viewing this in "Artboard" view (Zoomed Out), I want people to be able to see what's contained in that particular .box. When people click on one of the boxes, I want it to scale back to (1) to cover the viewport. And if the person is on the 4th .box and they click "Zoom Out", I want it to zoom out from that particular .box.
Each box will be the size of the viewport, which is how it's set up now.
Does anyone have a solution in CSS only? Or is this something that can be better accomplished in JS? I'm not a JS expert, I'm just getting into it, so I'm curious if there's something I can do in some simple JS.
Please see my codepen:
http://codepen.io/jareko999/pen/eZGLZB
HTML
<div class="bar">
<button class="zoomout" onclick="zoomOut()">Zoom Out</button>
</div>
<div class="container">
<div class="artboard">
<div class="box">
<i class="fa fa-diamond"></i>
</div>
<div class="box">
<i class="fa fa-bolt"></i>
</div>
<div class="box">
<i class="fa fa-flag"></i>
</div>
<div class="box">
<i class="fa fa-flask"></i>
</div>
</div>
</div>
CSS
body {
margin: 0;
padding: 0;
height: 100vh;
width: 100%;
background: #e1e1e1;
overflow-y: hidden;
}
.bar {
position: fixed;
display: flex;
flex-direction: row;
box-sizing: border-box;
bottom: 0;
width: 100%;
height: 80px;
background: white;
padding: 14px 0;
z-index: 1;
}
.zoomout {
-webkit-appearance: none;
border: none;
outline: 0;
width: 100px;
height: 40px;
margin: auto;
background: black;
color: white;
border-radius: 10px;
cursor: pointer;
}
.container {
height: 100vh;
width: 100%;
transition: .2s ease-out;
transform: scale(1);
}
.container-small {
height: 100vh;
width: 100%;
transition: .2s ease-out;
transform: scale(.7);
}
.artboard {
height: 100%;
width: 100%;
display: flex;
display: -webkit-flex;
background: #e1e1e1;
}
.box {
padding-top: 44vh;
box-sizing: border-box;
text-align: center;
flex-shrink: 0;
width: 100%;
height: 100%;
box-shadow: 0 2px 4px #a9a9a9;
background: linear-gradient(to right, #276cd6 , #00a651);
transition: .2s ease-out;
transform: scale(1);
}
.box-small {
padding-top: 44vh;
box-sizing: border-box;
text-align: center;
flex-shrink: 0;
width: 100%;
height: 100%;
box-shadow: 0 2px 4px #a9a9a9;
background: linear-gradient(to right, #276cd6 , #00a651);
transition: .2s ease-out;
transform: scale(.9);
cursor: pointer;
}
.box i {
color: #e1e1e1;
font-size: 3em;
}
.overflow {
overflow: hidden;
}
.remove {
display: none;
}
::-webkit-scrollbar {
width: 12px;
height: 4px;
}
/* Track */
::-webkit-scrollbar-track {
background: white;
-webkit-border-radius: 10px;
border-radius: 10px;
}
/* Handle */
::-webkit-scrollbar-thumb {
-webkit-border-radius: 100px;
border-radius: 100px;
background: #4099ff;
}
JS
$(document).ready(function() {
$('.container').addClass('overflow');
});
function zoomOut() {
$('.bar').addClass('remove');
$('.box').addClass('box-small');
$('.container').removeClass('overflow');
$('.container').addClass('container-small');
}
$('.box').click(function() {
$('.bar').removeClass('remove');
$('.box').removeClass('box-small');
$('.container').addClass('overflow');
$('.container').removeClass('container-small');
});

What you're trying to achieve can be done using a CSS only method.
This method relies on using location hashes (url.com#foobar) and the :target pseudo selector.
The :target pseudo selector allows you to target the element which has the id matching the location hash. For example, imagine you have an element with the id "foobar", the #foobar:target selector will only apply if you have navigated to url.com#foobar. You can create a link with the href attribute pointing #foobar to have a button trigger this pseudo selector.
In your case, you can apply the zoom out styles when the #container location hash is matched, and only show the slide matched by the location hash.
The drawback of this method is that you have to add ids, and add links to actually trigger the :target pseudo class.
My explanation might not be clear, so I put up this demo:
http://codepen.io/ntim/pen/ONxGJd