.alert-box {
    color:#555;
    border-radius:10px;
    font-family:Tahoma,Geneva,Arial,sans-serif;font-size:11px;
    padding:10px 10px 10px 36px;
    margin:10px;
}
.alert-box span {
    font-weight:bold;
    text-transform:uppercase;
}
.error {
    background:#ffecec url('/images/NotificationBoxes/error.png') no-repeat 10px 50%;
    border:1px solid #f5aca6;
}
.success {
    background:#e9ffd9 url('/images/NotificationBoxes/success.png') no-repeat 10px 50%;
    border:1px solid #a6ca8a;
}
.warning {
    background:#fff8c4 url('/images/NotificationBoxes/warning.png') no-repeat 10px 50%;
    border:1px solid #f2c779;
}
.notice {
    background:#e3f7fc url('/images/NotificationBoxes/notice.png') no-repeat 10px 50%;
    border:1px solid #8ed9f6;
}

/*
<div class="alert-box error"><span>error: </span>Write your error message here.</div>
<div class="alert-box success"><span>success: </span>Write your success message here.</div>
<div class="alert-box warning"><span>warning: </span>Write your warning message here.</div>
<div class="alert-box notice"><span>notice: </span>Write your notice message here.</div>
*/