用css3和jquery實現的漸層的動態進度條

進度條是網站中常見的一種，今天經過研究外國一個網站的例子，試著用css3來實現進度條：

html代碼如下：

    <div class="progress-bar blue stripes">    <span style="width: 40%"></span></div><p>Set above to:    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/"></p> <div class="progress-bar orange shine">    <span style="width: 65%"></span></div><p>Set above to:    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/"></p> <div class="progress-bar green glow">    <span style="width: 55%"></span></div><p>Set above to:    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/">    <a href="http://www.php1.cn/"></p>

css樣式：

body{ background:#222; width:360px; margin:0 auto; font:13px 'trebuchet MS',Arial,Helvetica;}h2, p {text-align: center;color: #fafafa;text-shadow: 0 1px 0 #111;    } a {color: #777;}  .progress-bar{ background-color:#1a1a1a; height:25px; padding:5px; width:350px; margin:70px 0 20px 0;-moz-border-radius:5px; -webkit-border-raidus:5px; border-radius:5px;-moz-box-shadow:0 1px 5px #000 inset, 0 1px 0 #444;-webkit-box-shadow:0 1px 5px #1a1a1a inset,0 1px 0 #444; box-shadow:0 1px 5px inset,0 1px 0 #444;  }.progress-bar span{ display:inline-block; height:100%; background-color:#777; -moz-border-radius:3px;-webkit-border-radius:3px; border-radius:3px; border-radius:3px; box-shadow:0 1px 0 rgba(255,255,255,.5) inset; -webkit-box-shadow:0 1px 0 rgba(255,255,.5) inset; -moz-box-shadow:0 1px 0 rgba(255,255,.5) inset;  -webkit-transition:width .4s ease-in-out; -moz-transition:width .4s ease-in-out;-ms-transition:width .4s ease-in-out;transition: width .4s ease-in-out;    }

主要實現進度條的背景：

.blue span {            background-color: #34c2e3;           }.orange span{     background-color:#fecf23;     background-image:-webkit-gradient(linear,left top,left bottom,from(#fecf23), to(#fd9215));     background-image:-webkit-linear-gradient(top,#fecf23, #fd9215);     background-image:-moz-linear-gradient(top,#fecf23, #fd9215);     background-image:-ms-linear-gradient(top, #fecf23, #fd9215);     background-image:-o-linear-gradient(top, #fecf23, #fd9215);     background-image: linear-gradient(top, #fecf23, #fd9215);     filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#fecf23', endColorstr='#fd9215'); /* IE6 & IE7 */   -ms-filter: "progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#fecf23', endColorstr='#fd9215')"; /* IE8 */      }    .green span{        background-color:#a5df41;        background-image:-webkit-gradient(linear,left top,left bottom,from(#a5df41), to(#4ca916));        background-image:-webkit-linear-gradient(top,#a5df41, #4ca916);        background-image:-moz-linear-gradient(top,#a5df41, #4ca916);        background-image: -ms-linear-gradient(top, #a5df41, #4ca916);        background-image: -o-linear-gradient(top, #a5df41, #4ca916);        background-image: linear-gradient(top, #a5df41, #4ca916);         filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#a5df41', endColorstr='#4ca916'); /* IE6 & IE7 */       -ms-filter: "progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr='#a5df41', endColorstr='#4ca916')"; /* IE8 */    }        .stripes span {            -webkit-background-size: 30px 30px;            -moz-background-size: 30px 30px;            background-size: 30px 30px;                        background-image: -webkit-gradient(linear, left top, right bottom,                                color-stop(.25, rgba(255, 255, 255, .15)), color-stop(.25, transparent),                                color-stop(.5, transparent), color-stop(.5, rgba(255, 255, 255, .15)),                                color-stop(.75, rgba(255, 255, 255, .15)), color-stop(.75, transparent),                                to(transparent));            background-image: -webkit-linear-gradient(135deg, rgba(255, 255, 255, .15) 25%, transparent 25%,                                transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%,                                transparent 75%, transparent);            background-image: -moz-linear-gradient(135deg, rgba(255, 255, 255, .15) 25%, transparent 25%,                                transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%,                                transparent 75%, transparent);            background-image: -ms-linear-gradient(135deg, rgba(255, 255, 255, .15) 25%, transparent 25%,                                transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%,                                transparent 75%, transparent);            background-image: -o-linear-gradient(135deg, rgba(255, 255, 255, .15) 25%, transparent 25%,                                transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%,                                transparent 75%, transparent);            background-image: linear-gradient(135deg, rgba(255, 255, 255, .15) 25%, transparent 25%,                                transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%,                                transparent 75%, transparent);                                    -webkit-animation: animate-stripes 3s linear infinite;            -moz-animation: animate-stripes 3s linear infinite;                       }        @-webkit-keyframes animate-stripes {             0% {background-position: 0 0;} 100% {background-position: 60px 0;}        }                        @-moz-keyframes animate-stripes {            0% {background-position: 0 0;} 100% {background-position: 60px 0;}        }        .shine span {            position: relative;        }                .shine span::after {            content: '';            opacity: 0;            position: absolute;            top: 0;            right: 0;            bottom: 0;            left: 0;            background: #fff;            -moz-border-radius: 3px;            -webkit-border-radius: 3px;            border-radius: 3px;                                    -webkit-animation: animate-shine 2s ease-out infinite;            -moz-animation: animate-shine 2s ease-out infinite;                     }         @-webkit-keyframes animate-shine {             0% {opacity: 0; width: 0;}            50% {opacity: .5;}            100% {opacity: 0; width: 95%;}        }                        @-moz-keyframes animate-shine {            0% {opacity: 0; width: 0;}            50% {opacity: .5;}            100% {opacity: 0; width: 95%;}        }         /*---------------------------*/                     .glow span {            -moz-box-shadow: 0 5px 5px rgba(255, 255, 255, .7) inset, 0 -5px 5px rgba(255, 255, 255, .7) inset;            -webkit-box-shadow: 0 5px 5px rgba(255, 255, 255, .7) inset, 0 -5px 5px rgba(255, 255, 255, .7) inset;            box-shadow: 0 5px 5px rgba(255, 255, 255, .7) inset, 0 -5px 5px rgba(255, 255, 255, .7) inset;                        -webkit-animation: animate-glow 1s ease-out infinite;            -moz-animation: animate-glow 1s ease-out infinite;                     }        @-webkit-keyframes animate-glow {         0% { -webkit-box-shadow: 0 5px 5px rgba(255, 255, 255, .7) inset, 0 -5px 5px rgba(255, 255, 255, .7) inset;}         50% { -webkit-box-shadow: 0 5px 5px rgba(255, 255, 255, .3) inset, 0 -5px 5px rgba(255, 255, 255, .3) inset;}         100% { -webkit-box-shadow: 0 5px 5px rgba(255, 255, 255, .7) inset, 0 -5px 5px rgba(255, 255, 255, .7) inset;}         }        @-moz-keyframes animate-glow {         0% { -moz-box-shadow: 0 5px 5px rgba(255, 255, 255, .7) inset, 0 -5px 5px rgba(255, 255, 255, .7) inset;}         50% { -moz-box-shadow: 0 5px 5px rgba(255, 255, 255, .3) inset, 0 -5px 5px rgba(255, 255, 255, .3) inset;}         100% { -moz-box-shadow: 0 5px 5px rgba(255, 255, 255, .7) inset, 0 -5px 5px rgba(255, 255, 255, .7) inset;}         }

jquey部分：

$(document).ready(function(){    $('.quarter').click(function(){        $(this).parent().prev().children("span").css('width','25%');        });        $('.half').click(function(){            $(this).parent().prev().children('span').css("width",'50%');            });            $('.three-quarters').click(function(){                $(this).parent().prev().children('span').css('width','75%');                });                $('.full').click(function(){                    $(this).parent().prev().children('span').css('width','100%');                    })    })

