纯CSS3编写的的精美动画进度条(无flash/无图像/无

<div id="prbar">
<div id="prpos">
</div>
</div>
<input id="moveTo" value="57" style="width:30px;" />%
<button onclick="MoveTo();return false;">Move</button>

#prbar {
margin:5px;
width:500px;
background-color:#dddddd;
overflow:hidden;
/ 边框效果 /
border: 1px solid #bbbbbb;
-moz-border-radius: 15px;
border-radius: 15px;
/ 为进度条增加阴影效果 /
-webkit-box-shadow: 0px 2px 4px #555555;
-moz-box-shadow: 0px 2px 4px #555555;
box-shadow: 0px 2px 4px #555555;
}
/ No rounded corners for Opera, because the overflow:hidden dont work with rounded corners /
doesnotexist:-o-prefocus, #prbar {
border-radius:0px;
}
#prpos {
width:0%;
height:30px;
background-color:#3399ff;
border-right:1px solid #bbbbbb;
/ CSS3 进度条渐变 /
transition: width 2s ease;
-webkit-transition: width 0s ease;
-o-transition: width 0s ease;
-moz-transition: width 0s ease;
-ms-transition: width 0s ease;
/ CSS3 Stripes /
background-image: linear-gradient(135deg,#3399ff 25%,#99ff 25%,#99ff 50%, #3399ff 50%, #3399ff 75%,#99ff 75%,#99ff 100%);
background-image: -moz-linear-gradient(135deg,#3399ff 25%,#99ff 25%,#99ff 50%, #3399ff 50%, #3399ff 75%,#99ff 75%,#99ff 100%);
background-image: -ms-linear-gradient(135deg,#3399ff 25%,#99ff 25%,#99ff 50%, #3399ff 50%, #3399ff 75%,#99ff 75%,#99ff 100%);
background-image: -o-linear-gradient(135deg,#3399ff 25%,#99ff 25%,#99ff 50%, #3399ff 50%, #3399ff 75%,#99ff 75%,#99ff 100%);
background-image: -webkit-gradient(linear, 100% 100%, 0 0,color-s(.25, #99ff), color-s(.25, #3399ff),color-s(.5, #3399ff),color-s(.5, #99ff),color-s(.75, #99ff),color-s(.75, #3399ff),color-s(1, #3399ff));
background-image: -webkit-linear-gradient(135deg,#3399ff 25%,#99ff 25%,#99ff 50%, #3399ff 50%, #3399ff 75%,#99ff 75%,#99ff 100%);
background-size: 40px 40px;
/ Background stripes animation /
animation: bganim 3s linear 2s infinite;
-moz-animation: bganim 3s linear 2s infinite;
-webkit-animation: bganim 3s linear 2s infinite;
-o-animation: bganim 3s linear 2s infinite;
-ms-animation: bganim 3s linear 2s infinite;
}
@keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
@-moz-keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
@-webkit-keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
@-o-keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}
@-ms-keyframes bganim {
from {background-position:0px;} to { background-position:40px;}
}

function MoveTo() {
var prpos = document.getElementById('prpos');
prpos.style.width = document.getElementById('moveTo').value + "%";
}