#message p {
    font-size:18px;
}
.valid {
    color: green;
}
.valid:before {
    position: relative;
    left: -5px;
    content: "✔";
}
.invalid {
    color: red;
}
.invalid:before {
    position: relative;
    left: -5px;
    content: "✖";
}