Isn't it this CSS in static/css/base.css? Also, If you have any interest in
CSS, Chrome/Safari have an "Inspect Element" command and Firefox has the
terrific Firebug add on. These are all must-have tools for working with web
page styles.
/*********** web2py specific ***********/
div.flash {
font-weight: bold;
display: none;
position: fixed;
padding: 10px;
top: 40px;
right: 10px;
min-width: 280px;
opacity: 0.85;
margin: 0px 0px 10px 10px;
color: #fff;
vertical-align: middle;
cursor: pointer;
background: #000;
border: 2px solid #fff;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
z-index: 2;
}
div.error {
background-color: red;
color: white;
padding: 3px;
}