Edit in JSFiddle

Result
HTML
CSS

<html>
    <head><title>progress tag in html5</title>
    </head>
    <body>
        <span>Downloading :</span>
        <progress value="66" max="100" class="progress1">Progressing</progress><br />
        <span>Installing :</span>
        <progress value="66" max="100" class="progress2">Progressing</progress>
    </body>
</html>

.progress1
{
    height:30px;
    width:100px
}
.progress2
{
    height:10px;
    width:300px
}