Animated bubbles upwards continuously with pure CSS

Here is a pure CSS experimental work to create floating bubbles without using JavaScript. These animated bubbles are also with popping effect. All these animation is created by Pure CSS.

For our little demo, we use a simple image for the conical flask and then create the bubbles entirely with markup and CSS. read more @ http://www.css-jquery-design.com/…

Animated bubbles upwards continuously with pure CSS

The HTML

<div id="beaker">
  <span class="bubble">
    <span class="glow"> </span>
  </span>
</div>

With our bubbles all made, now we need them to act like bubbles. We could use JavaScript but that’s no fun. Just use CSS! read more @ http://www.css-jquery-design.com/…read-more-button

CSS3 Inheritance Tips and Tricks – inherit, initial & unset

It’s easy to overlook the cascading features of style-sheets. Most designers/developers are aware of the inherit keyword but there are a few new inheritance features in CSS3 you may not be aware of…  read more @ http://www.css-jquery-design.com/…

css3-inheritance-tips-and-tricks-inherit-initial-unset

property: inherit;

The inherit keyword means “use whatever value is assigned to my parent”. If no value was explicitly defined on the parent element, the browser works up the DOM tree until the property is found. Ultimately, it ends at the browser  read more @ http://www.css-jquery-design.com/…
read-more-button

Animated Color wheel spinning with CSS3 Keyframes animation, Transform and Transition

I have done some experimental work to create CSS3 Animation without using JavaScript. I end up creating some animations using CSS3 Keyframes and Transform and like to share. I have done this animation using border-color tricks and CSS Transform: i.e. CSS scale and CSS3 rotation.

Note: Before going I like to make something clear, Internet Explorer 10, Firefox, and Opera supports the @keyframes rule and animation property. Chrome and Safari requires the prefix -webkit- in css.

Important: Internet Explorer 9, and earlier versions, does not support the @keyframe rule or animation property.

css3-keyframes-color-wheel-animation

The HTML

<div id="colorWheel">
    <span class="color01"></span>
    <span class="color02"></span>
    <span class="color03"></span>
    <span class="color04"></span>
    <span class="color05"></span>
    <span class="color06"></span>
    <span class="color07"></span>
    <span class="color08"></span>
    <span class="color09"></span>
    <span class="color10"></span>
</div>

The CSS

Now, We will use some CSS Technique using border-color tricks and CSS3 rotation. I have created this color cycle without using any image.  I have done a cool rotating wheel animation  using @keyframes animation.

#colorWheel {
    height: 100px;
    width: 100px;
    margin: 40px auto ;
    position: absolute; left:10%;
    -webkit-transform-origin: 50px 150px;
    -moz-transform-origin: 50px 150px;
    -ms-transform-origin: 50px 150px;
    -o-transform-origin: 50px 150px;
    transform-origin: 50px 150px;
    -webkit-transition: all 0.5s linear;
    -moz-transition: all 0.5s linear;
    -ms-transition: all 0.5s linear;
    -o-transition: all 0.5s linear;
    transition: all 0.5s linear;
    animation: wheel 10s ease-in-out infinite alternate;
    -moz-animation: wheel 10s ease-in-out infinite alternate;
    -webkit-animation: wheel 10s ease-in-out infinite alternate;
    -ms-animation: wheel 10s ease-in-out infinite alternate;
}

@keyframes wheel{
    0%{
    opacity:1;
    left:-10%;
    transform:scale(.6) rotate(0deg);
}
50%{
    opacity:.7}
100%{
    left: 90%;
    opacity:1;
    transform:scale(1) rotate(2160deg);
}
}
@-webkit-keyframes wheel{
    0%{
    opacity:1;
    left:-10%;
    -webkit-transform:scale(.6) rotate(0deg);
}
50%{
    opacity:.7;}
100%{
    left: 90%;
    opacity:1;
    -webkit-transform:scale(1) rotate(2160deg);
}
}
@-moz-keyframes wheel{
0%{
    opacity:1;
    left:-10%;
    -moz-transform:scale(.6) rotate(0deg);
}
50%{
    opacity:.7;}
100%{
    left: 90%;
    opacity:1;
    -moz-transform:scale(1) rotate(2160deg);
}
}
@-ms-keyframes wheel{
0%{
    opacity:1;
    left:-10%;
    -ms-transform:scale(.6) rotate(0deg);
}
50%{
    opacity:.7;}
100%{
    left: 90%;
    opacity:1;
    -ms-transform:scale(1) rotate(2160deg);
}
}

#colorWheel:hover {}
#colorWheel span {
    position: absolute;
    -webkit-transform-origin: 50% 50%;
    border-style: solid;
    border-width: 150px 50px;
    box-sizing: border-box;
}
#colorWheel span.color01 {
    -webkit-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -ms-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    transform: rotate(0deg);
    border-color: #43a1cd transparent transparent transparent;
}
#colorWheel span.color02 {
    -webkit-transform: rotate(36deg);
    -moz-transform: rotate(36deg);
    -ms-transform: rotate(36deg);
    -o-transform: rotate(36deg);
    transform: rotate(36deg);
    border-color: #639b47 transparent transparent transparent;
}
#colorWheel span.color03 {
    -webkit-transform: rotate(72deg);
    -moz-transform: rotate(72deg);
    -ms-transform: rotate(72deg);
    -o-transform: rotate(72deg);
    transform: rotate(72deg);
    border-color: #9ac147 transparent transparent transparent;
}
#colorWheel span.color04 {
    -webkit-transform: rotate(108deg);
    -moz-transform: rotate(108deg);
    -ms-transform: rotate(108deg);
    -o-transform: rotate(108deg);
    transform: rotate(108deg);
    border-color: #e1e23b transparent transparent transparent;
}
#colorWheel span.color05 {
    -webkit-transform: rotate(144deg);
    -moz-transform: rotate(144deg);
    -ms-transform: rotate(144deg);
    -o-transform: rotate(144deg);
    transform: rotate(144deg);
    border-color: #f7941e transparent transparent transparent;
}
#colorWheel span.color06 {
    -webkit-transform: rotate(180deg);
    -moz-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    -o-transform: rotate(180deg);
    transform: rotate(180deg);
    border-color: #ba3e2e transparent transparent transparent;
}
#colorWheel span.color07 {
    -webkit-transform: rotate(216deg);
    -moz-transform: rotate(216deg);
    -ms-transform: rotate(216deg);
    -o-transform: rotate(216deg);
    transform: rotate(216deg);
    border-color: #9a1d34 transparent transparent transparent;
}
#colorWheel span.color08 {
    -webkit-transform: rotate(252deg);
    -moz-transform: rotate(252deg);
    -ms-transform: rotate(252deg);
    -o-transform: rotate(252deg);
    transform: rotate(252deg);
    border-color: #662a6c transparent transparent transparent;
}
#colorWheel span.color09 {
    -webkit-transform: rotate(288deg);
    -moz-transform: rotate(288deg);
    -ms-transform: rotate(288deg);
    -o-transform: rotate(288deg);
    transform: rotate(288deg);
    border-color: #272b66 transparent transparent transparent;
}
#colorWheel span.color10 {
    -webkit-transform: rotate(324deg);
    -moz-transform: rotate(324deg);
    -ms-transform: rotate(324deg);
    -o-transform: rotate(324deg);
    transform: rotate(324deg);
    border-color: #2d559f transparent transparent transparent;
}
#colorWheel:before {
    content: "";
    width: 300px;
    height: 300px;
    overflow: hidden;
    position: absolute;
    top: -30px;
    left: -130px;
    border-radius: 100%;
    border: 30px solid #ffffff;
    z-index: 100;
    box-shadow:0px 0px 2px 12px rgba(180,180,180,.5)
}
#colorWheel:after {
    content: "";
    width: 100px;
    height: 100px;
    overflow: hidden;
    position: absolute;
    top: 100px;
    left: 0px;
    border-radius: 100%;
    box-shadow:0px 0px 2px 12px rgba(250,250,250,.5);
    background: #444 url(Dhiraj.png); background-size:contain
}

view demo

Your turn

I had already posted some articles of css3 @keyframes animation examples.  Please check some of these beautiful animation with demo below:

I hope you enjoyed this article and the techniques I used. Please share your comments and questions below!

Posted by: Dhiraj kumar

Cool inset Text Effect with CSS3 Text-Shadow

So, I have seen a few tutorials online about using text-shadow to create a basic inset text effect, but they are all lacking the real design aspect that makes the type look like it is actually INSET. That aspect is the inner shadow.

Introduction

I played around with trying to hack box-shadow into background-image in the same way that you can add linear gradients to text, but to no avail.

Well, in any case, I finally was able to get something to work, and yes, it is pretty killer.


insetText

That’s it right there. But, let’s take a look at how and why this works.

First let’s start with defining our class and setting our font. We have styled our div and our body and now we want this text to look like it is stamped into to page.

The CSS

.insetText {
        font-family: Lucida Grande;
}

The next step we want to take is to set the background-color of the text to the color that we want the inset to be. So…

.insetText {
        font-family: Lucida Grande;
        background-color: #666666;
}

Next, we are going to use the background-clip CSS3 property to create a clipping mask using the text to mask the background. Now if you are a designer, you probably already know how a clipping mask works. The color black is transparent to the background and the color white is opaque. Thus, the image behind the mask will show through on only the black parts and the white parts will ‘clip’ it. Remember that, because it’s important.

Remember, CSS3 is not standard yet and may not be supported in older browsers. For now, it’s best to use the standard AND browser specific properties for any CSS3, so…

.insetText {
        font-family: Lucida Grande;
        background-color: #666666;
        -webkit-background-clip: text;
	-moz-background-clip: text;
	background-clip: text;
}

Now, I know. It doesn’t look like that did anything, whatsoever. We are back where we started, right? Wrong, in truth, the background color has been clipped behind the text, so it only shows through where the text is. The problem is that the browser default CSS is to make text black. So, now we simply use color to make the text transparent.

.insetText {
        font-family: Lucida Grande;
        background-color: #666666;
        -webkit-background-clip: text;
	-moz-background-clip: text;
	background-clip: text;
        color: transparent;
}

Now we’re getting somewhere. We have taken transparent text and used it to clip it’s grey background. Here is where the magic happens. We will use the text-shadow property with rgba colors. Since the text is transparent, the entire shadow, even what is normally hidden by the text in front of it, will show. If we offset the shadow vertically, it will appear as if it is on the inside of the text. And if we blur the edges, it should actually appear like an inset shadow, since the darker clipped background fading into the white shadow right? And the shadow that falls outside of the clipping mask should appear to glow slightly, since that it’s closer in color to the contrasting background! So…

.insetText {
        font-family: Lucida Grande;
        background-color: #666666;
        -webkit-background-clip: text;
	-moz-background-clip: text;
	background-clip: text;
        color: transparent;
        text-shadow: rgba(255,255,255,1.0) 0px 3px 3px;
}

Yeah, that looks pretty good, right? I just don’t like how the inside of the text in now white. It looks kind of unnatural, and it really takes away from the outer glow that gives it the inset look. So let’s revise our shadow color by dropping it’s opacity or ‘a’ value to 0.5. Like so…

.insetText {
        font-family: Lucida Grande;
        background-color: #666666;
        -webkit-background-clip: text;
	-moz-background-clip: text;
	background-clip: text;
        color: transparent;
        text-shadow: rgba(255,255,255,0.5) 0px 3px 3px;
}

Perfect! Now we have a completely CSS based inset text effect! We can now add this class to any text element on our websites, without having to open Photoshop or Illustrator, create the document, design the effect, save the image, upload the image, and then place the image in our markup where it will slow down our load time. You would add this to your markup like so…

<h1>This is inset text</h1>

This solution is great for headings. The smaller you make your text the smaller you will need to make your text-shadow.

NOTE: This method is currently only supported by Webkit browser like Google Chrome and Apple Safari.

Thanks for reading, and I hope this helped!

view demo

Posted by: Dhiraj kumar

Rotating Words With CSS Animations – CSS3 Keyframes Animation Example

In today’s tutorial we’ll create another typography effect. The idea is to have some kind of sentence and to rotate a part of it. We’ll be “exchanging” certain words of that sentence using CSS animations.
Please note: the result of this tutorial will only work as intended in browsers that support CSS animations.
So let’s start!

In the following, we’ll be going through demo.

rotating-words-css-animations

THE HTML

We’ll have a main wrapper with a h2 heading that contains first-level spans and two divisions for the rotating words:

<section class="rw-wrapper">
	<h2 class="rw-sentence">
		<span>Real poetry is like</span>
		<br />
		<span>creating beautiful butterflies</span>
		<br />
		<span>with a silent touch of</span>
		<div class="rw-words rw-words-1">
			<span>spice</span>
			<span>colors</span>
			<span>happiness</span>
			<span>wonder</span>
			<span>sugar</span>
			<span>happiness</span>
		</div>
	</h2>
</section>

Now, ignoring the garbage placeholder text, we want each span of the rw-word to appear at a time. For that we’ll be using CSS animations. We’ll create one animation for each division and each span will run it, just with different delays.
So, let’s look at the CSS.

THE CSS3

First, we will style the main wrapper and center it on the page:

.rw-wrapper{
	width: 80%;
	position: relative;
	margin: 110px auto 0 auto;
	font-family: 'Bree Serif';
	padding: 10px;
	height: 400px;
	overflow: hidden;
}

We’ll add some text shadow to all the elements in the heading:

.rw-sentence{
	margin: 0;
	text-align: left;
	text-shadow: 1px 1px 1px rgba(255,255,255,0.8);
}

And add some specific text styling to the spans:

.rw-sentence span{
	color: #444;
	white-space: nowrap;
	font-size: 200%;
	font-weight: normal;
}

The divisions will be displayed as inline elements, that will allow us to “insert” them into the sentence without breaking the flow:

.rw-words{
	display: inline;
	text-indent: 10px;
}

Each span inside of a rw-words div will be positioned absolutely and we’ll hide any overflow:

.rw-words span{
	position: absolute;
	opacity: 0;
	overflow: hidden;
	color: #888;
	-webkit-transform-origin: 10% 75%;
	-moz-transform-origin: 10% 75%;
	-ms-transform-origin: 10% 75%;
	-o-transform-origin: 10% 75%;
	transform-origin: 10% 75%;
}

Now, we’ll run two animations. As mentioned previously, we’ll run the same animation for all the spans in one div, just with different delays:

.rw-words-1 span{
	animation: rotateWord 16s linear infinite 0s;
}
.rw-words-2 span{
    animation: rotateWordsSecond 18s linear infinite 0s;
}
.rw-words span:nth-child(2) {
	animation-delay: 3s; 
	color: #6b889d;
}
.rw-words span:nth-child(3) {
	animation-delay: 6s; 
	color: #6b739d;	
}
.rw-words span:nth-child(4) {
	animation-delay: 9s; 
	color: #7a6b9d;
}
.rw-words span:nth-child(5) {
	animation-delay: 12s; 
	color: #8d6b9d;
}
.rw-words span:nth-child(6) {
	animation-delay: 15s; 
	color: #9b6b9d;
}

Our animations will run one cycle, meaning that each span will be shown once for three seconds, hence the delay value. The whole animation will run 6 (number of images) * 3 (appearance time) = 18 seconds.
We will need to set the right percentage for the opacity value (or whatever makes the span appear). Dividing 6 by 18 gives us 0.333… which would be 33% for our keyframe step. Everything that we want to happen to the span needs to happen before that. So, after tweaking and seeing what fits best, we come up with the following animation (Fade in and “fall”) for the first words:

@keyframes rotateWord {
    0% { opacity: 0; }
    5% { opacity: 1; }
    17% { opacity: 1; transform: rotate(0deg); }
	19% { opacity: 1; transform: rotate(98deg); }
	21% { opacity: 1; transform: rotate(86deg); }
	23% { opacity: 1; transform: translateY(85px) rotate(83deg); }
	25% { opacity: 0; transform: translateY(170px) rotate(80deg); }
	80% { opacity: 0; }
    100% { opacity: 0; }
}

We’ll fade in the span and we’ll also animate its height.
The animation for the words in the second div will fade in and animate their width. We added a bit to the keyframe step percentages here, because we want these words to appear just a tiny bit later than the ones of the first word:

@keyframes rotateWordsSecond {
    0% { opacity: 1; animation-timing-function: ease-in; width: 0px; }
    10% { opacity: 0.3; width: 0px; }
    20% { opacity: 1; width: 100%; }
    27% { opacity: 0; width: 100%; }
    100% { opacity: 0; }
}

css3-animations-rotating-words

And that’s it folks! There are many possibilities for the animations, you can check out the demo and see what can be applied!
I hope you enjoyed this tutorial and find it inspiring!
view demo

 

Posted by: Dhiraj kumar

Creating CSS Starbursts Design with CSS3 Transform

Working with the new CSS3 rotation property I got that I could create image free starbursts. All I needed was a series of nested block-level elements each rotated by a slightly different amount. The rotation would distribute the box corners around the circumference of the star.

About these CSS3 Starbursts:

A good thing is if you create your starbursts with CSS3 you can do so much more than with images. You can experiment with different numbers of points/corners, rounded borders, resize, text-shadows and animations also.

To see the animations you will need to use latest browsers like IE 9+, Firefox 4.0+, Safari 4.1+ and Chrome 3.0+.

css-starburst-design

No CSS Hacks

There are no CSS hacks required for these CSS3 starbursts. CSS is designed to be backwards compatible so any browser that cannot understand CSS3 will simply ignore these new rules without any error.

iPhone, iPod Touch, & iPad Compatible

The Safari browser is one of the most advanced when it comes to CSS3 because it uses the powerful Webkit rendering engine. This means all these animated starbursts will work fine on the iPhone, iPod Touch and the iPad.

SEO Friendly

Because the text in each starburst is actually real text it will be crawled and indexed by Google like everything else. It also means that people who are vision impaired can more easily read and understand your web page if they are using a screen reader.

No Images Required

All of the shapes, colours and shadows in the starbursts above are created using CSS3 rules. No images are used at all.

No JavaScript Required

The animations in these demos are made possible with the CSS3 transition rules. No JavaScript is used to create any effects.

Resizable Text Compatible

All the dimensions of the starbursts are set in em measurements. This means that you can increase the text size in your browser and the starburst will grow in size along with all other text. This is great news for web accessibility.

view demo

The HTML

<div class="price-container">
  <div class="price">
    <span class="label">Buy</span>
    <span class="number">$99.95</span>
    <span class="label">Now</span>
  </div>
</div>

I have <div> that, you guessed it, contains the price starburst. I’ll use this for the background of the starburst. The <div> is the container for the text inside (the price info.) That’s it for the markup. From here, I’ll be styling pseudo classes to create the multiple points. Also, I mentioned earlier that there were a few less points in the CSS version of this starburst. This markup doesn’t really have anything unnecessary in it.

The CSS

Now on to the fun part. Let me overview what I’m going to do, then I’ll show you the styles needed to achieve it. I’m going to style .price-container.price, and the :before and:after pseudo elements for each. Essentially, I’ve got six elements to work with. I created this background image to apply to each of the elements and I will rotate 15 degrees each:

image used for starburst

The CSS is a little bit longer. I’ve used the rotation rules in the CSS, one is for Firefox (prefixed with -moz-), one is for webkit i.e. Safari and Chrome (prefixed with -webkit-), one is for Internet Explorer (prefixed with -ms-), one is for Opera (prefixed with -o-), and the other is the standard rotation rule as it will be used once this rotation property becomes standard:

.price-container,
.price-container:before,
.price-container:after,
.price-container .price,
.price-container .price:before,
.price-container .price:after {
	height: 8.5em;
	width: 8.5em;
	background: #760B1F url(price-bg.png) top left no-repeat;
	background-size: 8.5em;
}

.price-container:before,
.price-container:after,
.price-container .price:before,
.price-container .price:after {
	content: "";
	position: absolute;
}

.price-container {
	margin: 100px auto; /* Centering for demo */
	position: relative; /* Context */
	top: 2.5em;
	left: 2.5em;
	-webkit-transform: rotate(-45deg);
	  -moz-transform: rotate(-45deg);
	   -ms-transform: rotate(-45deg);
	    -o-transform: rotate(-45deg);
	       transform: rotate(-45deg);
}

.price-container:before {
	top: 0;
	left: 0;
	-webkit-transform: rotate(-30deg);
	  -moz-transform: rotate(-30deg);
	   -ms-transform: rotate(-30deg);
	    -o-transform: rotate(-30deg);
	       transform: rotate(-30deg);
}

.price-container:after {
	top: 0;
	left: 0;
	-webkit-transform: rotate(-15deg);
	  -moz-transform: rotate(-15deg);
	   -ms-transform: rotate(-15deg);
	    -o-transform: rotate(-15deg);
	       transform: rotate(-15deg);
}

.price-container .price {
	padding: .5em 0em;
	height: 7.5em; /* height minus padding */
	position: absolute;
	bottom: 0;
	right: 0;
	-webkit-transform: rotate(45deg);
	  -moz-transform: rotate(45deg);
	   -ms-transform: rotate(45deg);
	    -o-transform: rotate(45deg);
	       transform: rotate(45deg);
	z-index: 1; /* important so the text shows up */
}

.price-container .price:before {
	top: 0;
	left: 0;
	-webkit-transform: rotate(60deg);
	  -moz-transform: rotate(60deg);
	   -ms-transform: rotate(60deg);
	    -o-transform: rotate(60deg);
	       transform: rotate(60deg);
}

.price-container .price:after {
	top: 0;
	left: 0;
	-webkit-transform: rotate(75deg);
	  -moz-transform: rotate(75deg);
	   -ms-transform: rotate(75deg);
	    -o-transform: rotate(75deg);
	       transform: rotate(75deg);
}

A few things I’ll point out about the styles:

  • Notice the order of the rotation angles: This order is important because there is going to be text inside the inner-most element. Therefore, the last element (the one the text going in, in this case .price) has to be straight. Notice that .price-container is rotated -45 degrees and .price is rotated 45 degrees – back to 0.
  • The height and width: The height and width has to be set since we are dealing with background images here. I’ve set it in ems to adjust appropriately when the text size increases.
  • There’s a padding top and bottom on .price-container .price. That’s why the height is a little different than all the others.
  • Everything is positioned absolutely inside the first container. .price-container hasleft: 2.5em and top: 2.5em just to move the whole thing a little. When everything is rotated, the corners go of the page and out of the container a little.
  • z-index: There’s a z-index defined for .price-container .price. This is so the price information inside this div is visible.

Now all that’s left is styling the text.

.price-container .price span {
        position: relative;
	z-index: 100;
	display: block;
	text-align: center;
	color: #FE0;
	font: 1.8em/1.4em 'georgia',Sans-Serif;
	text-transform: uppercase;
}

.price-container .price span.number {
  font-weight: bold;
  font-size: 2.5em;
  line-height: .9em;
  color: #fff;
}

Some more CSS used in hover effect:

.price-container.one:hover {
	-webkit-transform: rotate(-20deg);
	-moz-transform: rotate(-20deg);
	-ms-transform: rotate(-20deg);
	-o-transform: rotate(-20deg);
	transform: rotate(-20deg);
}

Doing It Image-Free

Now, I have some extra stuff in here because the design called for this very subtle inner border. If you don’t like or need the inner border, just remove the bit about background image and background size and design will hold up fine.

Browser Support

This works as-is in IE 9+, Firefox 4.0+, Safari 4.1+ and Chrome 3.0+. IE 8 and below do not support background-size, and Chrome 1.0, Firefox 3.6 and Safari 3.0 will require some vendor prefixes. IE8 does support pseudo elements, however doesn’t support transform.

The fallback would be a colored square. Very likely not a huge problem.

auto-adjustable-dynamic-starburst-design-css3-html5

There You Have It

It’s a price star thing. Flexible enough to grow when you increase your font size. Made with some CSS. You can use this for highlighting prices, discounts etc.

That’s it!

I hope you enjoyed this article and if you have questions, comments, or suggestions, let me know! Thanks for reading.

Posted by: Dhiraj kumar

Cool Animated Fire Effects with CSS3 and jQuery

This effect has been created with some jQuery for setting different CSS3 text-shadow’s in a div. You can check the demo code to see how it’s done. Basically, the Javascript function creates 3 text-shadows (white, yellow and red) with coprime “cycle durations” so the effect looks more random even though it’s totally deterministic.

css3-jquery-animated-fire-effect

Each shadow moves in the Y axis with a linear function and in the X axis with a cosine function. Pretty simple, but effective.

The CSS

#onfire{
      height:auto;
      padding-top:3em;
      font-size: 42px;
      font-weight: bold;
      text-align: center;
      color:brown;
}

The jQuery

<script type="text/javascript">
var step = 1;
function nextShadow(){
	$('#onfire span').each(function(){
	    y = parseFloat($(this).attr("y_pos"));
	    y += step + Math.random()*3;
	    $(this).attr("y_pos", y);
	    shaking = Math.random();
	    shadow1 = "0px 0px "+(y%5)+"px white";
	    shadow2 = shaking*24/y*Math.cos(y/5)*15+"px -"+(shaking*4/y+(y%17))+"px "+(shaking+(y%17))+"px red";
	    shadow3 = shaking*24/y*Math.cos(y/7)*15+"px -"+(shaking*4/y+(y%31))+"px "+(shaking+(y%31))+"px #993";
	    shadow4 = shaking*24/y*Math.cos(y/13)*15+"px -"+(shaking*4/y+(y%41))+"px "+(shaking+(y%41))+"px yellow";
	    $(this).css("text-shadow", shadow2+", "+shadow1+", "+shadow4+", "+shadow3);
	});
}
$(function(){
    $('#onfire span').each(function(){$(this).attr("y_pos","0");});
   setInterval(nextShadow, 50); 
});
</script>

view demo

Update:

I’ve added some randomisation to the algorithm, as well as an individual animation to each of the letters (which, as a drawback, makes the effect run less smooth). I’ve also added a fourth shadow in dark yellow. You can freely use the code by keeping the mention to this site on it.

Thanks for reading and looking forward to read your thoughts!

Posted by: Dhiraj kumar