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

Html IMG vs CSS Background-image

Image – Useful Tips

An image can be used in a webpage for two regions,

1) Image =  for content use, on the other hand, tend to change frequently. New images are uploaded often, users change their profile images and photo galleries, etc.

2) Background Image = for design. I.e. logos, button images, links with images, etc. tend to stay the same. They’re only changed if designer want to redesign.

The way I tend to think about this is, do I want the image to appear on all screen sizes, on all devices, with CSS turned either on or off? Do I want the image to be “indexed” by Google and Facebook. If the answer is yes to all or any of these questions, then usually the image is “content” and you should use an IMG tag.

If you want a different image to display at different screen sizes (or no image at all on certain devices), or if you’re happy for the image to not appear on a print out, or you’re happy for the image to not appear if CSS is turned off, then usually the image is “design” and you should use a background image.

Note: If an HTML file contains ten images – eleven files are required to display the page right. Loading images takes time, so my best advice is: Use images carefully.

Note: When a web page is loaded, it is the browser, at that moment, that actually gets the image from a web server and inserts it into the page. Therefore, make sure that the images actually stay in the same spot in relation to the web page, otherwise your visitors will get a broken link icon. The broken link icon is shown if the browser cannot find the image.
read more @ http://www.css-jquery-design.com/…

read-more-button

Proper uses of IMG & Background-image

  1. Use IMG if you intend to have people print your page and you want the image to be included by default. 
  2. Use IMG (with alt text) when the image has an important semantic meaning, such as a warning icon. This ensures that the meaning of the image can be communicated in all user-agents, including screen readers.

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

CSS3 Buttons with Cool Effects – Pure CSS

Nowadays, using subtle patterns is kinda cool so I thought why not using them also on buttons? The idea was to create some nice CSS3 patterned buttons and in this article you’ll see what I’ve been working on lately.

css3-patterned-buttons

view demo

I wrote before about CSS3 buttons, so you may want to check also these articles:

CSS3 patterned buttons features

  • Easy-to-use.
  • Contain the transitions on gradients hack.
  • As you may have expected, no images used here. Instead, an base64 string is used to create the patterned effect.
  • Stilish pressed behavior when grouped.

Buttons

Basically, to create a button, the only thing you have to do is this:

<a href="" class="button">Button</a>

or

<button class="button">Button</button>

You could also use something like <input type="submit"> but for best cross-browser rendering, just stick to the above.

THE CSS

.button{
  display: inline-block;
  *display: inline;
  zoom: 1;
  padding: 6px 20px;
  margin: 0;
  cursor: pointer;
  border: 1px solid #bbb;
  overflow: visible;
  font: bold 13px arial, helvetica, sans-serif;
  text-decoration: none;
  white-space: nowrap;
  color: #555;
  background-color: #ddd;
  background-image: linear-gradient(top, rgba(255,255,255,1),
                                         rgba(255,255,255,0)),
                    url(data:image/png;base64,iVBORw0KGg[...]QmCC); 
  transition: background-color .2s ease-out;
  background-clip: padding-box; /* Fix bleeding */
  border-radius: 3px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, .3),
              0 2px 2px -1px rgba(0, 0, 0, .5),
              0 1px 0 rgba(255, 255, 255, .3) inset;
  text-shadow: 0 1px 0 rgba(255,255,255, .9);  
}

.button:hover{
  background-color: #eee;
  color: #555;
}

.button:active{
  background: #e9e9e9;
  position: relative;
  top: 1px;
  text-shadow: none;
  box-shadow: 0 1px 1px rgba(0, 0, 0, .3) inset;
}

Different buttons sizes

If you want to make a more prominent or a less prominent call-to-action button, you have options:

css3-patterned-buttons

<button class="small button">Button</button>

or

<button class="large button">Button</button>

THE CSS

/* Smaller buttons styles */

.button.small{
  padding: 4px 12px;
}

/* Larger buttons styles */

.button.large{
  padding: 12px 30px;
  text-transform: uppercase;
}

.button.large:active{
  top: 2px;
}

Various buttons colors

You’ll need custom colors for successful actions or negative ones as delete:

css3-patterned-buttons

<button class="button">Button</button>
<button class="color red button">Button</button>
<button class="color green button">Button</button>
<button class="color blue button">Button</button>

THE CSS

.button.color{
  color: #fff;
  text-shadow: 0 1px 0 rgba(0,0,0,.2);
  background-image: linear-gradient(top, rgba(255,255,255,.3), 
  					 rgba(255,255,255,0)),
                    url(data:image/png;base64,iVBORw0KGg[...]QmCC);
}

/* */

.button.green{
  background-color: #57a957;
  border-color: #57a957;
}

.button.green:hover{
  background-color: #62c462;
}

.button.green:active{
  background: #57a957;
}

/* */

.button.red{
  background-color: #c43c35;
  border-color: #c43c35;
}

.button.red:hover{
  background-color: #ee5f5b;
}

.button.red:active{
  background: #c43c35;
}

/* */

.button.blue{
  background-color: #269CE9;
  border-color: #269CE9;
}

.button.blue:hover{
  background-color: #70B9E8;
}

.button.blue:active{
  background: #269CE9;
}

Disabled states

In case you’re using buttons or inputs, in some cases you’ll need them to be disabled until a certain task is triggered:

css3-patterned-buttons

<button class="button" disabled>Button</button>
<button class="color red button" disabled>Button</button>
<button class="color green button" disabled>Button</button>
<button class="color blue button" disabled>Button</button>

THE CSS

.button[disabled], .button[disabled]:hover, .button[disabled]:active{
  border-color: #eaeaea;
  background: #fafafa;
  cursor: default;
  position: static;
  color: #999;
  /* Usually, !important should be avoided but here it's really needed :) */
  box-shadow: none !important;
  text-shadow: none !important;
}

.green[disabled], .green[disabled]:hover, .green[disabled]:active{
  border-color: #57A957;
  background: #57A957;
  color: #D2FFD2;
}

.red[disabled], .red[disabled]:hover, .red[disabled]:active{
  border-color: #C43C35;
  background: #C43C35;
  color: #FFD3D3;
}

.blue[disabled], .blue[disabled]:hover, .blue[disabled]:active{
  border-color: #269CE9;
  background: #269CE9;
  color: #93D5FF;
}

Grouped buttons

There will be cases when you’ll need to group similar call-to-action buttons:

css3-patterned-buttons

<ul class="button-group">
	<li><button class="button">Button</button></li>
	<li><button class="button">Button</button></li>
	<li><button class="button">Button</button></li>
	<li><button class="button">Button</button></li>
</ul>

THE CSS

.button-group,
.button-group li{
  display: inline-block;
  *display: inline;
  zoom: 1;
}

.button-group{
  font-size: 0; /* Inline block elements gap - fix */
  margin: 0;
  padding: 0;
  background: rgba(0, 0, 0, .04);
  border-bottom: 1px solid rgba(0, 0, 0, .07);
  padding: 7px;
  border-radius: 7px; 
}

.button-group li{
  margin-right: -1px; /* Overlap each right button border */
}

.button-group .button{
  font-size: 13px; /* Set the font size, different from inherited 0 */
  border-radius: 0; 
}

.button-group .button:active{
  box-shadow: 0 0 1px rgba(0, 0, 0, .2) inset,
              5px 0 5px -3px rgba(0, 0, 0, .2) inset,
              -5px 0 5px -3px rgba(0, 0, 0, .2) inset;   
}

.button-group li:first-child .button{
  border-radius: 3px 0 0 3px;
}

.button-group li:first-child .button:active{
  box-shadow: 0 0 1px rgba(0, 0, 0, .2) inset,
              -5px 0 5px -3px rgba(0, 0, 0, .2) inset;
}

.button-group li:last-child .button{
  border-radius: 0 3px 3px 0;
}

.button-group li:last-child .button:active{
  box-shadow: 0 0 1px rgba(0, 0, 0, .2) inset,
              5px 0 5px -3px rgba(0, 0, 0, .2) inset;
}

Browser compatibility

CSS3 patterned buttons works in all major browsers. But of course CSS3 features used here do not work in oder browsers like IE8 and below.

view demo

This is it!

There are so many CSS3 buttons in the wild and I know it. Yet I’m confident that my CSS3 patterned buttons might inspire you and I hope you’ll find it useful for your future projects.

Posted by: Dhiraj kumar

Hover and Click Trigger For CIRCULAR Elements With jQuery

Today we want to share one possible solution to the circle hovering problem. We’ll create a plugin that will take care of the ‘mouseenter’, ‘mouseleave’ and ‘click’ events to be triggered only on the circular shape of the element and not its bounding box.

Applying a :hover pseudo-class to an element is widely known as the classic “hovering” over an element on a web page. A problem that arose with the introduction of the border-radius property is the non-realistic triggering of the hover event when entering the bounding box of the element and not just the actual visible area. This becomes extreme when we create a circle by setting the border-radius of a square to 50% (half of its outer width and height).

Today we want to share one possible solution to the circle hovering problem. We’ll create a plugin that will take care of the ‘mouseenter’, ‘mouseleave’ and ‘click’ events to be triggered only on the circular shape of the element and not its bounding box.

CIRCULAR-Elements-With-jQuery

HOW IT WORKS

In our example, we’ll be creating a circle with some kind of hover effect. The structure will simply be:

<a href="#" id="circle" class="ec-circle">
    <h3>Hovered</h3>
</a>

And the style will be the following:

.ec-circle{
    width: 420px;
    height: 420px;
    -webkit-border-radius: 210px;
    -moz-border-radius: 210px;
    border-radius: 50%;
    text-align: center;
    overflow: hidden;
    font-family:'Kelly Slab', Georgia, serif;
    background: #dda994 url(HoverClickTriggerCircle.jpg) no-repeat center center;
    box-shadow: 
        inset 0 0 1px 230px rgba(0,0,0,0.6),
        inset 0 0 0 7px #d5ad94;
    transition: box-shadow 400ms ease-in-out;
    display: block;
    outline: none;
}

Now, we will define a class for the hover effect but not a dynamic pseudo-class :hover. The idea is to apply this class then with jQuery when we enter the circular area of our element:

.ec-circle-hover{
    box-shadow: 
        inset 0 0 0 0 rgba(0,0,0,0.6),
        inset 0 0 0 20px #c18167,
        0 0 10px rgba(0,0,0,0.3);
}

Only when we have JavaScript disabled, we’ll add the pseudo-class. This style can be found in the noscript.css:

.ec-circle:hover{
    box-shadow: 
        inset 0 0 0 0 rgba(0,0,0,0.6),
        inset 0 0 0 20px #c18167,
        0 0 10px rgba(0,0,0,0.3);
}

THE JAVASCRIPT

We are going to create a simple plugin that basically “redefines” the three events mentioned earlier. We’ll make the events only applicable on the circular shape:

$.CircleEventManager            = function( options, element ) {
    this.$el = $( element );
    this._init( options );
};

$.CircleEventManager.defaults   = {
    onMouseEnter    : function() { return false },
    onMouseLeave    : function() { return false },
    onClick         : function() { return false }
};

$.CircleEventManager.prototype  = {
    _init           : function( options ) {
        this.options = $.extend( true, {}, $.CircleEventManager.defaults, options );
        // set the default cursor on the element
        this.$el.css( 'cursor', 'default' );
        this._initEvents();

    },
    _initEvents     : function() {
       var _self   = this;
       this.$el.on({
           'mouseenter.circlemouse'    : function( event ) {
               var el  = $(event.target),
               circleWidth   = el.outerWidth( true ),
               circleHeight  = el.outerHeight( true ),
               circleLeft    = el.offset().left,
               circleTop     = el.offset().top,
               circlePos     = {
                       x     : circleLeft + circleWidth / 2,
                       y     : circleTop + circleHeight / 2,
                       radius: circleWidth / 2
                   };

                // save cursor type
                var cursor  = 'default';
                if( _self.$el.css('cursor') === 'pointer' || _self.$el.is('a') )
                    cursor = 'pointer';
                el.data( 'cursor', cursor );
                el.on( 'mousemove.circlemouse', function( event ) {
                var distance    = Math.sqrt( Math.pow( event.pageX - circlePos.x, 2 ) + Math.pow( event.pageY - circlePos.y, 2 ) );

                if( !Modernizr.borderradius ) {

                  // inside element / circle
                  el.css( 'cursor', el.data('cursor') ).data( 'inside', true );
                  _self.options.onMouseEnter( _self.$el );

                 }
                 else {

                   if( distance <= circlePos.radius && !el.data('inside') ) {                       // inside element / circle                       el.css( 'cursor', el.data('cursor') ).data( 'inside', true );                       _self.options.onMouseEnter( _self.$el );                                                   }                     else if( distance > circlePos.radius && el.data('inside') ) {

                      // inside element / outside circle
                      el.css( 'cursor', 'default' ).data( 'inside', false );
                      _self.options.onMouseLeave( _self.$el );
                    }
                   }
                }); 
            },
            'mouseleave.circlemouse'    : function( event ) {
              var el  = $(event.target);
              el.off('mousemove');
               if( el.data( 'inside' ) ) {
                  el.data( 'inside', false );
                  _self.options.onMouseLeave( _self.$el );
              }
             },
            'click.circlemouse'         : function( event ) {
              // allow the click only when inside the circle
                var el  = $(event.target);
                if( !el.data( 'inside' ) )
                    return false;
                else
                    _self.options.onClick( _self.$el );
            }
        });         
    },
    destroy             : function() {     
        this.$el.unbind('.circlemouse').removeData('inside').removeData('cursor'); 
    }
}

When we enter with the mouse in the square bounding box of our circle, we bind the ‘mousemove’ event to the element and like that we can track if the distance of the mouse to the center of the element if longer than the radius. If it is, we know that we are not yet hovering the circular area of the element.

hoverTrigger
Once the distance of the mouse is shorter than the radius, we know that we entered the circle and we trigger our custom ‘mouseenter’ event.
We also only allow the click event when the mouse is inside of the circle.
In our example we will then apply our plugin to the regarding element. In our case, we are adding the hover class on ‘mouseenter’ and removing it on ‘mouseleave’.

$('#circle').circlemouse({
    onMouseEnter    : function( el ) {

        el.addClass('ec-circle-hover');

    },
    onMouseLeave    : function( el ) {

        el.removeClass('ec-circle-hover');

    },
    onClick         : function( el ) {

        alert('clicked');

    }
})

Remember that the “normal” pseudo hover class is also defined in the noscript.css which gets applied when JavaScript is disabled.

view demo

Your turn

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

Posted by: Dhiraj kumar

Animated 3D Bouncing Ball with CSS3, Html5

Hi guys! Today we are going to see another great example of how to use the power of CSS3. We will start by creating a very cool and realistic 3D ball with pure CSS3 properties, and add a little CSS3 animations for giving the ball a “bouncing” effect.

Please note: the result of this tutorial will only work as intended in browsers that support the respective CSS properties (gradient, shadow, border-radius, keyframe animation).css-3d-bouncing-ball

THE HTML

Let’s start with some very basic HTML:

<div id="ballWrapper">
     <div id="ball"></div>
     <div id="ballShadow"></div>
</div>

What we have here are 3 simple DIV elements. “#ballWrapper” is the main DIV which wraps the ball. This DIV will determine the ball’s position and height on the screen. Next, we have the “#ball” element which is the ball markup, and finally there is the “#ballShadow” which holds the ball’s shadow separately from the ball itself.

THE CSS

First, we’ll want to set a basic width and height to our ‘#ballWrapper’ DIV. It will help us position it to the center of the screen:

#ballWrapper {
    width: 140px;
    height: 300px;
    position: fixed;
    left: 50%;
    top: 50%;
    margin: -150px 0 0 -70px;
}

Note that I gave the DIV both top and left position properties of  ‘50%’, and a negative top and left margin which is calculated to be exactly half of the original height and width of the DIV. That way we can center the ball on the screen.

Next in line, let’s give our ball some styles (grow up, it’s not that funny… :])

#ball {
    width: 140px;
    height: 140px;
    border-radius: 70px;
    background: linear-gradient(top,  rgba(187,187,187,1) 0%,rgba(119,119,119,1) 99%);
    box-shadow: inset 0 -5px 15px rgba(255,255,255,0.4), 
                inset -2px -1px 40px rgba(0,0,0,0.4), 
                0 0 1px #000;   
}

We are giving the ball equal width and height and a ‘border-radius‘ property with a value of  ’70px’ (which is half of the original width and height we’ve set) so it will be a ball and not an oval shape.

Another thing you’ll notice is the background. I gave the ball’s element a linear background and 3 different box shadow levels so it would get the 3D effect. The first box shadow level is for the dark shadowing at the bottom of the ball (see image). Then, we have the second level that is responsible for the blurry glow – again, at the bottom of the ball. Finally the third level is a hardly noticeable blurry shadow behind the contours of the ball.

If you take a look at the ball you’ll notice that there is another small oval shape on top of the ball that gives it a reflection effect. Here is how I created it:

#ball::after {
    content: "";
    width: 80px; 
    height: 40px; 
    position: absolute;
    left: 30px;
    top: 10px;  
    background: linear-gradient(top,  rgba(232,232,232,1) 0%,rgba(232,232,232,1) 1%,rgba(255,255,255,0) 100%);
    border-radius: 40px / 20px; 
}

I used the CSS pseudo element ::after and gave it a linear gradient with an opacity. In addition, I’ve set the border radius to  ’40px / 20px’ so it has an oval shape.
Next, let’s handle the ball’s shadow:

#ballShadow {
    width: 60px;
    height: 75px;
    position: absolute;
    z-index: 0;
    bottom: 0;
    left: 50%;
    margin-left: -30px;
    background: rgba(20, 20, 20, .1);
    box-shadow: 0px 0 20px 35px rgba(20,20,20,.1);
    border-radius: 30px / 40px; 
}

view demo

Again, I used the same properties for centering the shadow, but this time I pinned it to the bottom of ‘#ballWrapper’. I also added a semi-transparent background to it, a fitting box shadow and a border radius.

THE BOUNCING ANIMATION

Now let’s take a look at the fun stuff…

I’ll start by adding the animation property to our ball:

#ball {
    animation: jump 1s infinite;
}

All I did was to define the animation’s name (jump), the animation’s duration (1 second) and how many times the animation will happen – in our case we use ‘infinite’ which means that it will run forever.
The animation itself:

@keyframes jump {
    0% {
        top: 0;
    }
    50% {
        top: 140px;
        height: 140px;
    }
    55% {
        top: 160px; 
        height: 120px; 
        border-radius: 70px / 60px;
    }
    65% {
        top: 120px; 
        height: 140px; 
        border-radius: 70px;
    }
    95% {
        top: 0;
    }
    100% {
        top: 0;
    }
}

So, basically what I’m doing here is to play with the ‘top’ position property of the ball.  Starting from 0, through 160 and back to 0. You’ll notice that in the middle of the animation I’m also playing with the ‘border-radius’ property – that way I handle the “impact” of the ball on the ground.

And now the ball’s shadow; first let’s add the shadow’s relevant animation property:

#ballShadow {
    animation: shrink 1s infinite;
}

I used the same values that I used with the ball, only with a different keyframes animation called shrink which looks as follows:

@-keyframes shrink {
    0% {
        bottom: 0;
        margin-left: -30px;
        width: 60px;
        height: 75px;
        background: rgba(20, 20, 20, .1);
        box-shadow: 0px 0 20px 35px rgba(20,20,20,.1);
        border-radius: 30px / 40px;
    }
    50% {
        bottom: 30px;
        margin-left: -10px;
        width: 20px;
        height: 5px;
        background: rgba(20, 20, 20, .3);
        box-shadow: 0px 0 20px 35px rgba(20,20,20,.3);
        border-radius: 20px / 20px;
    }
    100% {
        bottom: 0;
        margin-left: -30px;
        width: 60px;
        height: 75px;
        background: rgba(20, 20, 20, .1);
        box-shadow: 0px 0 20px 35px rgba(20,20,20,.1);
        border-radius: 30px / 40px;
    }
}

In the shadow’s animation I played with different properties then in the ball’s animation. In order to give it all a realistic effect when it comes to the ball’s distance from the floor, I needed to animate the shadow width, height and opacity. While the ball is close to the floor, the shadow needs to be darker and smaller. When the ball jumps up, the shadow should be lighter and bigger.

Last, but not least, let’s add the “click effect” to the ball which makes it appear as if it moves away from us when we click and hold. To achieve this effect, all we have to use is the ‘:active’ pseudo-class, add a transition and play with the CSS3 transform ‘scale’ property like this:

#ballWrapper {
    transform: scale(1);
    transition: all 5s linear 0s;
}

#ballWrapper:active {
    transform: scale(0);
}

The transition from a transform value of scale(1) to scale(0) will make it look as if the element is moving away from you.

view demo

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

CSS3 Transitions Effects on Background Gradients

CSS transitions do not have any effect on background gradients. As far as I know, the thing is that something similar would be quite difficult to achieve considering the multitude of possible gradients that can be created using a color palette.

Though, there are some simple ways you can simulate smooth transitions on gradients and below you’ll see how to do that.

faking-transitions-on-gradients

Before writing this article, I was thinking this new article will hopefully be more useful to you as It contains one more extra technique that can help you faking transitions on background gradients.

So, what is this about and why would you care about transitions on gradients? The answer is very simple: just think about the situation when you’re designing some CSS3 icons/buttons. To make them look awesome, it’s almost mandatory to use shadows, rounded corners and gradients.

Read the workarounds described below and you’ll be able to greatly improve your gradient buttons, especially their :hover state.
view demo

Initial styles

For this demo, we’re using three colored boxes to whom are applied the following workarounds.

I extracted only the important styles needed and as you can see, the background-color has the most important role, as it’s the one who’s actually being transitioned here.

.boxes li{
	transition: background-color .2s ease-out;
}

.boxes .red{
	background-color: #da232a;
}

.boxes .red:hover{
	background-color: #e75f64;
}	

.boxes .green{
	background-color: #72b01a;
}

.boxes .green:hover{
	background-color: #9ed354;
}	

.boxes .blue{
	background-color: #269ce9;
}

.boxes .blue:hover{
	background-color: #70b9e8;
}

1. Background-image

Having already a transitioned background-color, you just need to set a semi transparent background using background-image and the result will be a smooth gradient transition for the element to whom these styles are applied to.

background-image: linear-gradient(top, rgba(255,255,255,.5), rgba(255,255,255,0));

2. Box-shadow

Perhaps this is a bit dirtier, but it’s still a fully working technique. Instead of a semi transparent background as above, this assume using an inset box-shadow:

box-shadow: 0 60px 50px -30px rgba(255, 255, 255, .5) inset;

view demo

Conclusion

As you can see, the workarounds above are quite simple and easy to implement. Also, the big advantage is that they don’t require any additional markup element to work.

Thanks for reading and feel free to share your thoughts!

Posted by: Dhiraj kumar