Here i creat animation that turns from color to grayscale but i want it will start only when user will scroll down (as it's in my site with a lot of images and need to scroll down to get there)
here is the fiddle example:
http://jsfiddle.net/4tHWg/7/
.box {
float: left;
position: relative;
width: 14.285714286%;
}
.boxInner img {
width: 100%;
display: block;
}
.boxInner img:hover {
-webkit-filter: grayscale(0%);
}
#-webkit-keyframes toGrayScale {
to {
-webkit-filter: grayscale(100%);
}
}
.box:nth-child(1) img {
-webkit-animation: toGrayScale 1s 0.5s forwards;
}
.box:nth-child(2) img {
-webkit-animation: toGrayScale 2s 1s forwards;
}
.box:nth-child(3) img {
-webkit-animation: toGrayScale 3s 1.5s forwards;
}
This should do the trick.
$( window ).scroll(function() {
$(".box").each(function (index){
if (index == 1)
{
$(":nth-child("+index+")", $(this)).css('-webkit-animation','toGrayScale 1s 0.5s forwards');
}
if (index == 2)
{
$(":nth-child("+index+")", $(this)).css('-webkit-animation','toGrayScale 2s 1s forwards');
}
if (index == 2)
{
$(":nth-child("+index+")", $(this)).css('-webkit-animation','toGrayScale 3s 1.5s forwards');
}
});
If I understand correctly what you are looking to do, then you can handle scrolling with .scroll() function. Then trigger the animation if the windows .scrollTop() reaches each .box's offset().top.
$(window).scroll(function(){
var st = $(this).scrollTop();
$('.box').each(function(index, element){
if(st >= $(this).offset().top){
$(this).find('img').css({'-webkit-animation':'toGrayScale 1s 1s forwards'});
}
});
});
Here is the updated fiddle.
Related
I am having a little trouble in using javascript to access a css animation. My goal in this code is if you click the next button or previous button the border should spin but I am having trouble to trigger the css animation.
This is my html
<template>
<div v-on:click="prev" class="prevButton"><p><</p></div>
<div class="borderTop"></div>
<div v-on:click="next" class="nextButton"><p>></p></div>
</template>
This is the css
.border{
position: fixed;
height: 500px;
width: 500px;
top: 0;
left: 0;
right: 0;
bottom: 0;
margin: auto;
border-radius: 50%;
border: 120px solid rgba(0, 0, 0, 0.555);
transform: rotate(45deg);
-webkit-animation: spin 2s linear; /* Safari */
animation: spin 2s linear;
}
#keyframes spin {
0% { transform: rotate(0deg);
border-right: 120px solid rgba(255, 255, 255, 0.226);}
100% { transform: rotate(360deg); }
}
this is the javascript
prev(){
document.querySelector(".borderTop").animate;
}
next(){
document.querySelector(".borderTop").animate;
}
You can't trigger the animation from Javascript. Instead you should add your animation style to an additional class which you can add to the div for the duration of the animation.
.animate {
animation: spin 2s linear;
}
Add anther class with animation-direction: reverse; if you would like to reverse the animation for the prev button.
prev() {
document.querySelector('.borderTop').classList.add('animate');
// Remove the animate class after the spin was performed so it works again when the button is clicked.
setTimeout(function() {
document.querySelector('.borderTop').classList.remove('animate');
}, 2000)
});
}
next() {
document.querySelector('.borderTop').classList.add('animate');
setTimeout(function() {
document.querySelector('.borderTop').classList.remove('animate');
}, 2000)
});
}
let borderAnimatable = document.querySelector(".borderTop")
prev(){
borderAnimatable.style.animation = "spin 2s linear";
borderAnimatable.style.WebkitAnimation = "spin 2s linear";
}
next(){
borderAnimatable.style.animation = "spin 2s linear";
borderAnimatable.style.WebkitAnimation = "spin 2s linear";
}
I wanted to have an image fade permanently until the user refreshes the page, and I was able to do so with animation-fill forwards. However, I would like this animation to initiate only when you hover over it.
I am able to make an image fade with hover independently, but it resets after the user moves their cursor from the element. In short, I am unable to make the transition and the hover effect work in conjunction.
Here is the HTML
<div class="hill">
<img id="hill" src="https://i.postimg.cc/rw48gd3R/hillary.png">
</div>
Here is the CSS
body {
height:1000px;
}
#hill {
position: relative;
height: 100vh;
top: 100vh;
}
#-webkit-keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
#-moz-keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
#-o-keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
#keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
#hill {
-webkit-animation: fade 5s;
-moz-animation: fade 5s;
-o-animation: fade 5s;
animation: fade 5s;
animation-fill-mode: forwards;
}
This is the codepen to my project: https://codepen.io/narutofan389/collab/LYpxqmY
Much obliged for your help.
:hover state only applies when it is hovered, so it will not persist. I would recommend toggling a class on mouseenter via javascript. I've attached a fiddle to accomplish what you're intending. Let me know if you need any clarity. :)
document.addEventListener("DOMContentLoaded", function() {
var img = document.getElementById("hill");
img.addEventListener("mouseenter", function() { img.classList.add("hide")});
});
body {
height:1000px;
}
#hill {
position: relative;
height: 100vh;
}
#-webkit-keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
#-moz-keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
#-o-keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
#keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
#hill.hide {
-webkit-animation: fade 5s;
-moz-animation: fade 5s;
-o-animation: fade 5s;
animation: fade 5s;
animation-fill-mode: forwards;
}
<div class="hill">
<img id="hill" src="https://i.postimg.cc/rw48gd3R/hillary.png">
</div>
You can consider animation-play-state and have the animation defined on the element initially but the duration need to be short because it won't work if the user rapidly move the mouse
#hill {
position: relative;
height: 100vh;
animation: fade 0.5s paused forwards;
}
#hill:hover {
animation-play-state:running;
}
#keyframes fade {
0% { opacity: 1; }
100% { opacity: 0; }
}
<img id="hill" src="https://i.postimg.cc/rw48gd3R/hillary.png">
So the element That I am manipulating has an id of spinning and a class of rotors
I can get my element to spin. I did this by using the css code here:
.rotors {
position: relative;
top: 90px;
left: 30px;
-webkit-animation:spin .5s linear infinite;
-moz-animation:spin .5s linear infinite;
animation:spin .5s linear infinite;
} #-moz-keyframes spin { 100% { -moz-transform:rotate(360deg);}}
#-webkit-keyframes spin { 100% { -webkit-transform:rotate(360deg);}}`
#keyframes spin { 100% { -webkit-transform:rotate(360deg);}}
But Say instead of it spinning automatically on the page load that I could press a button with an id of one and it would start to spin, and if I press a second button with an id of two, it would spin even faster then the first.
I am not sure how to achieve this. I did see where some people pointed out that you can change the css of an element using javascript but am unsure on how to achieve this especially on a button click. I want it to be something like getElementById(spinning).style.property = but on button click and just changing the speed of the rotation of my element.
One option would be to change the animation-duration CSS property dynamically with JavaScript.
var rotors = document.querySelector(".rotors");
function fast() {
rotors.style.animationDuration = ".2s";
}
function slow() {
rotors.style.animationDuration = ".5s";
}
.rotors {
height: 50px; /* for demo purpose */
width: 50px; /* for demo purpose */
animation: spin .5s linear infinite;
}
#keyframes spin {
100% { transform: rotate(360deg); }
}
<p>
<button onclick="fast()">Fast</button>
<button onclick="slow()">Slow</button>
</p>
<img class="rotors" src="https://cdn.onlinewebfonts.com/svg/img_489361.png" />
Add 2 buttons and use it to change the classes like below:
function startSpinning(){
var spDiv = document.getElementById('test');
if(spDiv.classList.contains('rotorsFast')){
spDiv.classList.remove('rotorsFast');
spDiv.classList.add('rotors');
}else{
spDiv.classList.add('rotors');
}
}
function startSpinningFast(){
var spDiv = document.getElementById('test');
if(spDiv.classList.contains('rotors')){
spDiv.classList.remove('rotors');
spDiv.classList.add('rotorsFast');
}else{
spDiv.classList.add('rotorsFast');
}
}
.rotors {
position: relative;
top: 90px;
left: 30px;
-webkit-animation: spin .5s linear infinite;
-moz-animation: spin .5s linear infinite;
animation: spin .5s linear infinite;
}
.rotorsFast {
position: relative;
top: 90px;
left: 30px;
-webkit-animation: spin .2s linear infinite;
-moz-animation: spin .2s linear infinite;
animation: spin .2s linear infinite;
}
#-moz-keyframes spin {
100% {
-moz-transform: rotate(360deg);
}
}
#-webkit-keyframes spin {
100% {
-webkit-transform: rotate(360deg);
}
}
` #keyframes spin {
100% {
-webkit-transform: rotate(360deg);
}
}
<div id="test" style="width:20px">apple</div>
<button onclick="startSpinning()">spin</button>
<button onclick="startSpinningFast()">spin Fast</button>
This is a nice spot to use a CSS custom variable. When the button is clicked, we toggle a secondary class on the .rotors div. When the faster class is present, the custom variable resets the animation speed to the faster speed, which is automatically applied to the animation.
const rotors = document.querySelector('.rotors');
const btn = document.querySelector('.rotorButton');
btn.addEventListener('click', () => {
rotors.classList.toggle('faster')
});
.rotors {
--spin-speed: 2s; /* Initial speed */
position: relative;
top: 40px;
left: 30px;
background-color: yellow;
color: black;
display: inline-block;
animation: spin var(--spin-speed) linear infinite;
}
.rotors.faster {
--spin-speed: .5s; /* Faster speed 🔥 */
}
#keyframes spin {
100% {
transform: rotate(360deg);
}
}
<div class="rotors">text</div>
<button class="rotorButton" type="button">Toggle Rotor Speed</button>
jsFiddle
I am using typed.js from the link http://www.mattboldt.com/demos/typed-js/. Its working very nicely. Now I want to change my body background every time when a sentence completed.
I mean when "abcd ef" comes background should be blue.
for "ghijkl" ---the background should be red
and so on.
How can I do this. Please share with me if any one has any idea. I am adding my code below.
<div id="typed-strings">
<p><span>abcd ef.</span></p>
<p><span>ghijkl.</span></p>
<p><span>mnopqr.</span></p>
<p><span>stuvwxyz.</span></p>
</div>
<span id="typed" class=""></span>
<script src="/assets/typed.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
$("#typed").typed({
// strings: ["Typed.js is a <strong>jQuery</strong> plugin.", "It <em>types</em> out sentences.", "And then deletes them.", "Try it out!"],
stringsElement: $('#typed-strings'),
typeSpeed: 60,
backDelay: 800,
loop: true,
contentType: 'html', // or text
// defaults to false for infinite loop
loopCount: false,
callback: function(){ foo(); },
resetCallback: function() { newTyped(); }
});
$(".reset").click(function(){
$("#typed").typed('reset');
});
});
function newTyped(){ console.log("Call");/* A new typed object */ }
function foo(){ console.log("Callback"); }
</script>
<style type="text/css">
/* code for animated blinking cursor */
.typed-cursor{
opacity: 1;
font-weight: 100;
font-size: 36px;
-webkit-animation: blink 0.7s infinite;
-moz-animation: blink 0.7s infinite;
-ms-animation: blink 0.7s infinite;
-o-animation: blink 0.7s infinite;
animation: blink 0.7s infinite;
}
#-keyframes blink{
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
#-webkit-keyframes blink{
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
#-moz-keyframes blink{
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
#-ms-keyframes blink{
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
#-o-keyframes blink{
0% { opacity:1; }
50% { opacity:0; }
100% { opacity:1; }
}
</style>
here what you need:
after
loopCount: false,
insert this line
preStringTyped: function() { alert('background change happens now'); },
p.s. just change alert to your function. So, that will trigger when each sentence starts.
Time for setting the background-color !
As simple as
$(".element").typed({
strings: ["First sentence.<style>body{background-color: yellow}</style>Second sentence.<style>body{background-color: red}</style>"],
typeSpeed: 1,
contentType: "html"
});
Got the solution:
$(function(){
var x=1;
$("#typed").typed({
// strings: ["Typed.js is a <strong>jQuery</strong> plugin.", "It <em>types</em> out sentences.", "And then deletes them.", "Try it out!"],
stringsElement: $('#typed-strings'),
typeSpeed: 100,
backDelay: 1000,
loop: true,
contentType: 'html', // or text
// defaults to false for infinite loop
loopCount: false,
/*preStringTyped: function() { myfunc(); },*/
callback: function(){ foo(); },
preStringTyped: function() {
console.log(x);
x++;
if(x == 5) {
x = 1;
}
if(x == 1){
$("#start").addClass("myimg4").removeClass("myimg1 myimg2 myimg3");
}
if(x == 2){
$("#start").addClass("myimg1").removeClass("myimg2 myimg3 myimg4");
}
if(x == 3){
$("#start").addClass("myimg2").removeClass("myimg1 myimg3 myimg4");
}
if(x == 4){
$("#start").addClass("myimg3").removeClass("myimg1 myimg2 myimg4");
}
myfunc(); },
resetCallback: function() { newTyped(); }
});
$(".reset").click(function(){
$("#typed").typed('reset');
});
});
css
.myimg1 {
background-image: url('../assets/home/bg_1.jpg');
-webkit-transition: background-image 0.8s ease-in-out;
transition: background-image 0.8s ease-in-out;
}
.myimg2 {
background-image: url('../assets/home/bg_2.jpg');
-webkit-transition: background-image 0.8s ease-in-out;
transition: background-image 0.8s ease-in-out;
}
.myimg3 {
background-image: url('../assets/home/bg_3.jpg');
-webkit-transition: background-image 0.8s ease-in-out;
transition: background-image 0.8s ease-in-out;
}
.myimg4 {
background-image: url('../assets/home/bg_4.jpg');
-webkit-transition: background-image 0.8s ease-in-out;
transition: background-image 0.8s ease-in-out;
}
I am trying to show a css animation when hovering on nav li a. So far I have tried several different examples on how to show and hide information from different elements but can get mine to work. Here is the CSS and HTMl, I do not provide any jS or jQuery since I could get any to work but below you have a jsfiddle ready to go. All help highly appreciated.
.box {
-webkit-animation: dropdownbar 1s ease;
-moz-animation: dropdownbar 1s ease;
-o-animation: dropdownbar 1s ease;
animation: dropdownbar 1s ease;
-webkit-animation-fill-mode: forwards;
-moz-animation-fill-mode: forwards;
-o-animation-fill-mode: forwards;
animation-fill-mode: forwards;
width:100%;
background-color:#000;
color:#fff
}
#-webkit-keyframes dropdownbar {
0% { height: 0px; }
100% { height: 35px; }
}
#-moz-keyframes dropdownbar {
0% { height: 0px; }
100% { height: 35px; }
}
#-o-keyframes dropdownbar {
0% { height: 0px; }
100% { height: 35px; }
}
#keyframes dropdownbar {
0% { height: 0px; }
100% { height: 35px; }
}
<nav class="nav">
<ul>
<li class="navLink">Home</li>
<li class="navLink">Away</li>
</ul>
</nav>
<div class="box">this should show only when hovering li element</div>
FIDDLE
You can use jQuery to trigger the CSS3 animation with a class change :
DEMO
CSS :
.box {
-webkit-animation-fill-mode: forwards;
-moz-animation-fill-mode: forwards;
-o-animation-fill-mode: forwards;
animation-fill-mode: forwards;
width:100%;
background-color:#000;
color:#fff;
height:0;
}
.box.show {
-webkit-animation: dropdownbar 1s ease;
-moz-animation: dropdownbar 1s ease;
-o-animation: dropdownbar 1s ease;
animation: dropdownbar 1s ease;
height:35px;
}
#-webkit-keyframes dropdownbar {
0% {height: 0px;}
100% {height: 35px;}
}
#-moz-keyframes dropdownbar {
0% {height: 0px;}
100% {height: 35px;}
}
#-o-keyframes dropdownbar {
0% {height: 0px;}
100% {height: 35px;}
}
#keyframes dropdownbar {
0% {height: 0px;}
100% {height: 35px;}
}
jQuery :
$('nav li a').hover(function () {
$('.box').toggleClass('show');
});
You can try this jQuery. You just have to modify it to your needs... but this should get you started.
$(".navLink").mouseenter(function(){
$(".box").css("visibility", "visible")
});
$(".navLink").mouseleave(function(){
$(".box").css("visibility", "hidden")
});
If you put this in your javascript part in jsFiddle, it works.
You have to add style for div box as
<div class="box" style="display:none">
and add following javascript code:
$(document).ready(function(){
$(".navLink").hover(function(){
$(".box").toggle();
});
});
See the updated fiddle: Updated fiddle
There you go :). assumes jquery is up and running!
$(document).ready(function() {
var divToShow = $('.box');
var links = $('.navLink');
var fadeDuration = 500;
//initial hiding of div
divToShow.hide();
//add listener when mouse enters hover-state on link
links.mouseenter(function() {
//stop animation if there is one
divToShow.stop();
//fade it in
divToShow.fadeIn();
});
//add listener for when mouse leaves link
links.mouseleave(function() {
//stop animation if there is one
divToShow.stop();
//fade it out
divToShow.fadeOut();
});
});
this initially hides your div and fades it in and out when hovered. Compared to the other solutions this also takes care of switching from hovering from one link to another without appruptly changing the animation. totally smooth... ;)
Just select jQuery 2.1 and paste this in you jsFiddle...should work immediately!