魔幻般冒泡背景的CSS3按鈕動畫

這是一款非常有特點的CSS3按鈕，按鈕的背景不是北京圖片，也不是單純的顏色，而是一組魔幻般的冒泡背景動畫。當我們將鼠標滑過按鈕時，按鈕的冒泡背景動畫就可以展示出來。可以說這款CSS3按鈕的設計風格相當有創意，而且令人驚嘆的是，這些動畫都是用CSS3實現的，并沒有使用JavaScript，非常強大。

在線演示源碼下載

HTML代碼：

<div id="buttonContainer">

    <a href="#" class="button big blue">Big Button</a>
    <a href="#" class="button big green">Big Button</a>
    <a href="#" class="button big orange">Big Button</a>
    <a href="#" class="button big gray">Big Button</a>

    <a href="#" class="button blue medium">Medium Button</a>
    <a href="#" class="button green medium">Medium Button</a>
    <a href="#" class="button orange medium">Medium Button</a>
    <a href="#" class="button gray medium">Medium Button</a>

    <a href="#" class="button small blue">Small Button</a>
    <a href="#" class="button small green">Small Button</a>
    <a href="#" class="button small blue rounded">Rounded</a>

    <a href="#" class="button small orange">Small Button</a>
    <a href="#" class="button small gray">Small Button</a>

    <a href="#" class="button small green rounded">Rounded</a>

</div>

CSS代碼：

.button{
    font:15px Calibri, Arial, sans-serif;

    /* A semi-transparent text shadow */
    text-shadow:1px 1px 0 rgba(255,255,255,0.4);

    /* Overriding the default underline styling of the links */
    text-decoration:none !important;
    white-space:nowrap;

    display:inline-block;
    vertical-align:baseline;
    position:relative;
    cursor:pointer;
    padding:10px 20px;

    background-repeat:no-repeat;

    /* The following two rules are fallbacks, in case
       the browser does not support multiple backgrounds. */

    background-position:bottom left;
    background-image:url('button_bg.png');

    /* Multiple backgrounds version. The background images
       are defined individually in color classes */

    background-position:bottom left, top right, 0 0, 0 0;
    background-clip:border-box;

    /* Applying a default border raidus of 8px */

    -moz-border-radius:8px;
    -webkit-border-radius:8px;
    border-radius:8px;

    /* A 1px highlight inside of the button */

    -moz-box-shadow:0 0 1px #fff inset;
    -webkit-box-shadow:0 0 1px #fff inset;
    box-shadow:0 0 1px #fff inset;

    /* Animating the background positions with CSS3 */
    /* Currently works only in Safari/Chrome */

    -webkit-transition:background-position 1s;
    -moz-transition:background-position 1s;
    transition:background-position 1s;
}

.button:hover{

    /* The first rule is a fallback, in case the browser
       does not support multiple backgrounds
    */

    background-position:top left;
    background-position:top left, bottom right, 0 0, 0 0;
}

.button:active{
    /* Moving the button 1px to the bottom when clicked */
    bottom:-1px;
}

/* The three buttons sizes */

.button.big     { font-size:30px;}
.button.medium  { font-size:18px;}
.button.small   { font-size:13px;}

/* A more rounded button */

.button.rounded{
    -moz-border-radius:4em;
    -webkit-border-radius:4em;
    border-radius:4em;
}

/* Defining four button colors */

/* BlueButton */

.blue.button{
    color:#0f4b6d !important;

    border:1px solid #84acc3 !important;

    /* A fallback background color */
    background-color: #48b5f2;

    /* Specifying a version with gradients according to */

    background-image:   url('button_bg.png'), url('button_bg.png'),
                        -moz-radial-gradient(   center bottom, circle,
                                                rgba(89,208,244,1) 0,rgba(89,208,244,0) 100px),
                        -moz-linear-gradient(#4fbbf7, #3faeeb);

    background-image:   url('button_bg.png'), url('button_bg.png'),
                        -webkit-gradient(   radial, 50% 100%, 0, 50% 100%, 100,
                                            from(rgba(89,208,244,1)), to(rgba(89,208,244,0))),
                        -webkit-gradient(linear, 0% 0%, 0% 100%, from(#4fbbf7), to(#3faeeb));
}

.blue.button:hover{
    background-color:#63c7fe;

    background-image:   url('button_bg.png'), url('button_bg.png'),
                        -moz-radial-gradient(   center bottom, circle,
                                                rgba(109,217,250,1) 0,rgba(109,217,250,0) 100px),
                        -moz-linear-gradient(#63c7fe, #58bef7);

    background-image:   url('button_bg.png'), url('button_bg.png'),
                        -webkit-gradient(   radial, 50% 100%, 0, 50% 100%, 100,
                                            from(rgba(109,217,250,1)), to(rgba(109,217,250,0))),
                        -webkit-gradient(linear, 0% 0%, 0% 100%, from(#63c7fe), to(#58bef7));
}

/* Green Button */

.green.button{
    color:#345903 !important;
    border:1px solid #96a37b !important;    
    background-color: #79be1e;

    background-image:url('button_bg.png'), url('button_bg.png'), -moz-radial-gradient(center bottom, circle, rgba(162,211,30,1) 0,rgba(162,211,30,0) 100px),-moz-linear-gradient(#82cc27, #74b317);
    background-image:url('button_bg.png'), url('button_bg.png'), -webkit-gradient(radial, 50% 100%, 0, 50% 100%, 100, from(rgba(162,211,30,1)), to(rgba(162,211,30,0))),-webkit-gradient(linear, 0% 0%, 0% 100%, from(#82cc27), to(#74b317));
}

.green.button:hover{
    background-color:#89d228;

    background-image:url('button_bg.png'), url('button_bg.png'), -moz-radial-gradient(center bottom, circle, rgba(183,229,45,1) 0,rgba(183,229,45,0) 100px),-moz-linear-gradient(#90de31, #7fc01e);
    background-image:url('button_bg.png'), url('button_bg.png'), -webkit-gradient(radial, 50% 100%, 0, 50% 100%, 100, from(rgba(183,229,45,1)), to(rgba(183,229,45,0))),-webkit-gradient(linear, 0% 0%, 0% 100%, from(#90de31), to(#7fc01e));
}

/* Orange Button */

.orange.button{
    color:#693e0a !important;
    border:1px solid #bea280 !important;    
    background-color: #e38d27;

    background-image:url('button_bg.png'), url('button_bg.png'), -moz-radial-gradient(center bottom, circle, rgba(232,189,45,1) 0,rgba(232,189,45,0) 100px),-moz-linear-gradient(#f1982f, #d4821f);
    background-image:url('button_bg.png'), url('button_bg.png'), -webkit-gradient(radial, 50% 100%, 0, 50% 100%, 100, from(rgba(232,189,45,1)), to(rgba(232,189,45,0))),-webkit-gradient(linear, 0% 0%, 0% 100%, from(#f1982f), to(#d4821f));
}

.orange.button:hover{
    background-color:#ec9732;

    background-image:url('button_bg.png'), url('button_bg.png'), -moz-radial-gradient(center bottom, circle, rgba(241,192,52,1) 0,rgba(241,192,52,0) 100px),-moz-linear-gradient(#f9a746, #e18f2b);
    background-image:url('button_bg.png'), url('button_bg.png'), -webkit-gradient(radial, 50% 100%, 0, 50% 100%, 100, from(rgba(241,192,52,1)), to(rgba(241,192,52,0))),-webkit-gradient(linear, 0% 0%, 0% 100%, from(#f9a746), to(#e18f2b));
}

.gray.button{
    color:#525252 !important;
    border:1px solid #a5a5a5 !important;    
    background-color: #a9adb1;

    background-image:url('button_bg.png'), url('button_bg.png'), -moz-radial-gradient(center bottom, circle, rgba(197,199,202,1) 0,rgba(197,199,202,0) 100px),-moz-linear-gradient(#c5c7ca, #92989c);
    background-image:url('button_bg.png'), url('button_bg.png'), -webkit-gradient(radial, 50% 100%, 0, 50% 100%, 100, from(rgba(197,199,202,1)), to(rgba(197,199,202,0))),-webkit-gradient(linear, 0% 0%, 0% 100%, from(#c5c7ca), to(#92989c));
}

.gray.button:hover{
    background-color:#b6bbc0;

    background-image:url('button_bg.png'), url('button_bg.png'), -moz-radial-gradient(center bottom, circle, rgba(202,205,208,1) 0,rgba(202,205,208,0) 100px),-moz-linear-gradient(#d1d3d6, #9fa5a9);
    background-image:url('button_bg.png'), url('button_bg.png'), -webkit-gradient(radial, 50% 100%, 0, 50% 100%, 100, from(rgba(202,205,208,1)), to(rgba(202,205,208,0))),-webkit-gradient(linear, 0% 0%, 0% 100%, from(#d1d3d6), to(#9fa5a9));
}

在線演示源碼下載

本文鏈接：http://www.codeceo.com/article/css3-button-bubble-animation.html
本文作者：碼農網 – 小峰