.wpcf7[id*="wpcf7-f2240"] input[type=text],
.wpcf7[id*="wpcf7-f2240"] input[type=email],
.wpcf7[id*="wpcf7-f2240"] span.wpcf7-list-item label .checkmark{
    border: 1px solid #ddd;
	-webkit-border-radius: 3px;
    -moz-border-radius: 3px;
    border-radius: 3px;
}

.wpcf7[id*="wpcf7-f2240"] span.wpcf7-list-item label .checkmark::after {
    left: 10px;
    top: 3px;
    border-color: #777777;
}