standard_message.css

div.messagearea {
    margin:0;
    padding: 0;
    clear:both;
}

div.browsername {
    background-color: #FFF;
    padding-left: 0.5em;
    }

#messagearea.empty {
    border: none;
    clear: both;
}

div#messagearea ul.messages li.hi_warn { margin: 2.5em 0; }

ul.messages {
    font-family: arial, helvetica, sans-serif;
    margin: 0;
    padding: 0;
    list-style-type: none;
    list-style-image: none;
}

ul.messages li {
    margin: 0.22em 0 0.22em;
    padding: 0.25em;
    background: transparent no-repeat 0.5em 0.3em;
    position: relative;
}

ul.messages li .icon, ul.messages li.icon{ 
    background: url(img/standard_message_icons.png) no-repeat; 
    display: block; 
    margin-right: 4px;
    padding-left: 16px;
}

ul.messages li span.icon {
    background: #fff;
    padding-left: .5em;
    padding-top: .35em;
    margin-top: -.5em;
}

ul.messages li.success .icon, ul.messages li.success.icon {
    background-position: 0 0;
}
ul.messages li.warn .icon, ul.messages li.hi_warn .icon, ul.messages li.warn.icon, ul.messages li.hi_warn.icon {
    background-position: -17px 0;
}

ul.messages li.suggest .icon, ul.messages li.suggest.icon {
    background-position: -34px 0;
}
ul.messages li.info .icon, ul.messages li.info.icon {
    background-position: -51px 0;
}
ul.messages li.error .icon, ul.messages li.error.icon {
    background-position: -68px 0;
}

ul.messages li.hi_warn em.detail{
    font-weight: normal;
    font-style: normal;
    padding-left: 1.7em;
}

ul.messages li.hi_warn {
    font-weight: bold;
}

/* Message_icon - will refine a bit more*/
.success, .error, .warn, .info, .suggest, .hi_warn {
    background-image: url(img/standard_message_icons.png);
    padding-left: 17px;
    background-repeat: no-repeat;
    background-color: transparent;
    margin-bottom:.5em
}
.success {
    background-position: 0 0;
}
.warn {
    background-position: -17px 0;
}
.hi_warn {
    background-position: -17px 0;
    font-weight: bold;
}
.suggest {
    background-position: -34px 0;
}
.info {
    background-position: -51px 0;
}
.error {
    background-position: -68px 0;
}