【Demo】CSS3 动画 加载进度条

实例结果图：

完整代码：

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title>加载进度条</title>
        <style type="text/css">
            body{
                background: #e9e5e2;
            }
            #skill{
                list-style: none;
                font: 12px "Helvetica Neue", Arial, Helvetica, Geneva, sans-serif;
                width: 296px;
                margin: 50px auto 0;
                position: relative;
                line-height: 2em;
                padding: 30px 0;
            }
            #skill li{
                margin-bottom: 50px;
                background: #e9e5e2;
                background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#e1ddd9), to(#e9e5e2));
                background-image: -webkit-linear-gradient(#e1ddd9, #e9e5e2);
                background-image: -moz-linear-gradient(#e1ddd9, #e9e5e2);
                background-image: -o-linear-gradient(#e1ddd9, #e9e5e2);
                background-image: linear-gradient(#e1ddd9, #e9e5e2);
                height: 20px;
                border-radius: 10px;
                box-shadow: 0 1px 0px #bebbb9 inset,0 1px 0 #fcfcfc;
                -moz-box-shadow: 0 1px 0px #bebbb9 inset, 0 1px 0 #fcfcfc;
                -webkit-box-shadow: 0 1px 0px #bebbb9 inset, 0 1px 0 #fcfcfc;
            }
            #skill li h3{
                position: relative;
                top: -25px;
            }
            .bar{
                height: 18px;
                margin: 1px 2px;
                position: absolute;
                border-radius: 10px;
                -moz-border-radius: 10px;
                -webkit-border-radius: 10px;
                box-shadow: 0 1px 0px #fcfcfc inset, 0 1px 0 #bebbb9;
            }
            .graphic-design{
                width: 100%;
                animation: graphic-design 2s ease-out;
                -moz-animation: graphic-design 2s ease-out;
                -ms-animation: graphic-design 2s ease-out;
                -webkit-animation: graphic-design 2s ease-out;
                background: #f674a4;
                background-image: -webkit-gradient(linear, left top, left bottom, from(#f674a4), to(#e06995));
                background-image: -webkit-linear-gradient(top, #f674a4, #e06995);
                background-image: -moz-linear-gradient(top, #f674a4, #e06995);
                background-image: -ms-linear-gradient(top, #f674a4, #e06995);
                background-image: -o-linear-gradient(top, #f674a4, #e06995);
                background-image: linear-gradient(top, #f674a4, #e06995);
            }
            .html-css{
                width: 90%;
                background: #f0bb4b;
                animation: html-css 2s ease-out;
                -moz-animation: html-css 2s ease-out;
                -ms-animation: html-css 2s ease-out;
                -webkit-animation: html-css 2s ease-out;
                background-image: linear-gradient(top, #f0bb4b, #d9aa44);
                background-image: -webkit-gradient(linear, left top, left bottom, from(#f0bb4b), to(#d9aa44));
                background-image: -webkit-linear-gradient(top, #f0bb4b, #d9aa44);
                background-image: -moz-linear-gradient(top, #f0bb4b, #d9aa44);
                background-image: -ms-linear-gradient(top, #f0bb4b, #d9aa44);
                background-image: -o-linear-gradient(top, #f0bb4b, #d9aa44);
            }
            .jquery{
                width: 80%;
                background-color: #a1ce5b;
                animation: jquery 2s ease-out;
                -moz-animation: jquery 2s ease-out;
                -ms-animation: jquery 2s ease-out;
                -webkit-animation: jquery 2s ease-out;
                background-image: -webkit-gradient(linear, left top, left bottom, from(#a1ce5b), to(#91ba52));
                background-image: -webkit-linear-gradient(top, #a1ce5b, #91ba52);
                background-image: -moz-linear-gradient(top, #a1ce5b, #91ba52);
                background-image: -ms-linear-gradient(top, #a1ce5b, #91ba52);
                background-image: -o-linear-gradient(top, #a1ce5b, #91ba52);
                background-image: linear-gradient(top, #a1ce5b, #91ba52);
            }
            .wordpress{
                width: 70%;
                background-color: #66b3cc;
                animation: wordpress 2s ease-out;
                -moz-animation: wordpress 2s ease-out;
                -ms-animation: wordpress 2s ease-out;
                -webkit-animation: wordpress 2s ease-out;
                background-image: -webkit-gradient(linear, left top, left bottom, from(#66b3cc), to(#5da3ba));
                background-image: -webkit-linear-gradient(top, #66b3cc, #5da3ba);
                background-image: -moz-linear-gradient(top, #66b3cc, #5da3ba);
                background-image: -ms-linear-gradient(top, #66b3cc, #5da3ba);
                background-image: -o-linear-gradient(top, #66b3cc, #5da3ba);
                background-image: linear-gradient(top, #66b3cc, #5da3ba)
            }

            /*动画*/
            @keyframes graphic-design{
                0%{width: 0px;}
                100%{width: 100%;}
            }
            @-moz-keyframes graphic-design{
                0%{width: 0px;}
                100%{width: 100%;}
            }
            @-ms-keyframes graphic-design{
                0%{width: 0px;}
                100%{width: 100%;}
            }
            @-webkit-keyframes graphic-design{
                0%{width: 0px;}
                100%{width: 100%;}
            }

            @keyframes html-css{
                0%{width: 0px;}
                100%{width: 90%;}
            }
            @-moz-keyframes html-css{
                0%{width: 0px;}
                100%{90%;}
            }
            @-ms-keyframes html-css{
                0%{width: 0px;}
                100%{width: 90%;}
            }
            @-webkit-keyframes html-css{
                0%{width: 0px;}
                100%{width: 90%;}
            }

            @keyframes jquery{
                0%{width: 0px;}
                100%{width: 80%;}
            }
            @-moz-keyframes jquery{
                0%{width: 0px;}
                100%{80%;}
            }
            @-ms-keyframes jquery{
                0%{width: 0px;}
                100%{width: 80%;}
            }
            @-webkit-keyframes jquery{
                0%{width: 0px;}
                100%{width: 80%;}
            }

            @keyframes wordpress{
                0%{width: 0px;}
                100%{width: 70%;}
            }
            @-moz-keyframes wordpress{
                0%{width: 0px;}
                100%{70%;}
            }
            @-ms-keyframes wordpress{
                0%{width: 0px;}
                100%{width: 70%;}
            }
            @-webkit-keyframes wordpress{
                0%{width: 0px;}
                100%{width: 70%;}
            }

        </style>
    </head>
    <body>
        <ul id="skill">
            <li><span class="bar graphic-design"></span><h3>Graphic Design</h3></li>
            <li><span class="bar html-css"></span><h3>Html // Css</h3></li>
            <li><span class="bar jquery"></span><h3>jQuery // MoTools</h3></li>
            <li><span class="bar wordpress"></span><h3>Wordpress</h3></li>
        </ul>
    </body>
</html>