.wpcf7 form div.visible-only-if-invalid {
    display: none;
}

.wpcf7 form.invalid div.visible-only-if-invalid {
    display: block;
}

.wpcf7 form div.visible-only-if-sent {
    display: none;
}

.wpcf7 form.sent div.visible-only-if-sent {
    display: block;
}

.visible-only-if-sent{
    margin: 0;
    padding: 10px;
    border: 2px solid #d6e9c6;
    background-color: #dff0d8;
    color: #468847;
}

.visible-only-if-sent a{
    color: #356432;
}

.visible-only-if-sent a:hover{
    color: #356432;
}

.wpcf7 form .hide-response-output+.wpcf7-response-output {
    opacity: 0;
}