#supporter-form label {
    display: inline-block;
    width: 200px;
    text-align: right;
}
#supporter-form-inputs {
    float: left;
}
#supporter-form-submit {
    padding-left: 500px;
    padding-top: 100px;
    float: center;
}

#supporter-form div {
    margin-top: 1em;
}

.form-error {
    display: none;
    margin-left: 10px;
    color: green;
}		

.form-error-show {
    color: red;
    margin-left: 10px;
}

input.invalid, textarea.invalid {
    border: 2px solid red;
}

input.valid, textarea.valid {
    border: 2px solid green;
}