.w3-check input {
    width: 24px;
    height: 24px;
    position: relative;
    top: 6px; margin-right:8px
}

.btn-invia {
    border: none;
    display: inline-block;
    padding: 8px 16px;
    vertical-align: middle;
    overflow: hidden;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    white-space: nowrap;
}

#modulo-contatto label {
    font-weight: 500
}