.text-right {
    float: right;
}
.color-box {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 1px solid #000;
    margin-right: 10px;
    vertical-align: middle;
}
.text-danger {
    color: red;
}
.error {
    color: red;
    font-size: 0.9em;
    margin-top: 5px;
    display: block;
}

input.error {
    border-color: red;
}