.gutenberg #editor .blue-message, .blue-message {
    background: none repeat scroll 0 0 #3399ff;
    color: #ffffff;
    text-shadow: none;
    font-size: 14px;
    line-height: 24px;
    padding: 10px;
}
.gutenberg #editor .green-message, .green-message {
    background: none repeat scroll 0 0 #8cc14c;
    color: #ffffff;
    text-shadow: none;
    font-size: 14px;
    line-height: 24px;
    padding: 10px;
}