@import url("http://www.w3.org/2005/10/w3cdoc.css");
@import url("http://www.w3.org/Guide/pubrules-style.css");

<style type="text/css">

.summary {
   font-style: italic;
   margin: 1em 4em 0 4em;
}

.alert {
   padding: 1em; 
   padding-top: 0.25em;
   padding-bottom: 0.25em;
   margin-bottom: 2em; 

   border:2px solid blue; 

   box-shadow: 10px 10px 5px #888;
   -moz-box-shadow: 10px 10px 5px #888;
   -webkit-box-shadow: 10px 10px 5px #888;

    -moz-border-radius: 5px;
    -webkit-border-radius: 5px;
    -khtml-border-radius: 5px;
    border-radius: 5px;
}
.opt {
    color: #070;
}